Artikel Matematika kelas 9 ini akan menjelaskan tentang perbedaan kekongruenan dan kesebangunan dalam bangun datar berdasarkan ciri-cirinya. Yuk, belajar bersama!
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Pernah gak ketika kamu ngerjain tugas kelompok, ada aja anggota kelompok yang malah mainan smartphone. Hayo, siapa yang kayak gini?
Salah satu tips agar fokus mengerjakan tugas adalah dengan mengumpulkan semua smartphone di satu tempat, biar gak ada yang mainin. Kamu pernah kayak gini gak?
Emang ya, mengumpulkan smartphone di satu tempat bisa bikin lebih fokus ngerjain tugas. Pas udah selesai ngerjain dan mau ngambil smartphone, pastikan kalau kamu gak salah ambil ya, siapa tau ada yang tipe smartphonenya sama kayak kamu.
Kalau di dalam matematika, benda yang sama persis ada sebutannya lho, yaitu kongruen. Kalau dalam hubungan, butuh dua hati yang kongruen biar bisa bersatu. Jadi, kalau ngerasa ada yang beda, udah gak kongruen lagi, gak usah dipaksain ya.
Loh, loh, kok malah jadi ngelantur gini sih. Hehehe…
Dalam materi bangun datar, selain mengenal berbagai macam bangun datar, sifat-sifat, hingga rumus mencari luas dan kelilingnya, kamu juga akan mempelajari tentang istilah kongruen dan sebangun. Wah, apa tuh ya? Yuk, kita simak bersama di artikel ini!
Baca Juga: Rumus Bangun Datar (Luas dan Keliling) serta Contohnya
Pengertian Kekongruenan pada Bangun Datar
Sederhananya, kongruen adalah istilah yang digunakan untuk menyatakan dua bangun datar yang sama persis. Baik itu ukurannya, sifatnya, maupun sudut yang dimilikinya.
Nah, kongruen dilambangkan dengan simbol “≡” atau “≅”. Kamu bisa membacanya dengan sebutan “tanda sama dengan garis ganda”. Artinya, dua objek tersebut memiliki kesamaan yang sama persis (kongruen).
Contoh kekongruenan sering kita temui dalam kehidupan kita, loh! Contohnya aja, jendela yang ada di ruang tamu kamu. Pasti punya bentuk yang sama persis. Atau, kalau di sekolah ada temen kamu yang punya smartphone dengan merk dan tipe serupa dengan kamu, itu tandanya HP kamu dan temanmu kongruen!
Baca Juga: Rumus Luas & Volume Kerucut serta Contoh Soalnya
Contoh Kekongruenan
Dua bangun yang sama persis emang disebut sebagai kongruen. Tapi, secara formal, dalam konteks bangun datar, dua buah bangun datar dapat dikatakan kongruen jika memenuhi dua syarat, yaitu:
- Sudut-sudut yang bersesuaian sama besar
- Sisi-sisi yang bersesuaian sama panjang
Oke, supaya kamu lebih paham, coba perhatikan gambar di bawah ini, deh!
Contoh bangun datar yang kongruen. (Sumber: deni11math.wordpress.com)
Kalau kita bedah berdasarkan sifat-sifatnya, maka:
-
Sudut-sudut yang bersesuaian sama besar
Persegi panjang ABCD dan persegi panjang QPRS memiliki sudut-sudut yang sama besar, yaitu ∠A = ∠Q, ∠B = ∠P, ∠C = ∠R, ∠D = ∠S. Sudut-sudut tersebut sama-sama merupakan sudut siku-siku 90°.
-
Sisi-sisi yang bersesuaian sama panjang
Kemudian, sisi-sisi yang bersesuaian pada persegi panjang ABCD dan persegi panjang QPRS juga memiliki panjang yang sama. Sisi AB = sisi QP, sisi BC = sisi PR, sisi CD = sisi RS, sisi DA = sisi SQ.
Nah, karena kedua syarat kekongruenan telah terpenuhi, maka dapat dikatakan bahwa persegi panjang ABCD kongruen dengan persegi panjang QPRS (ABCD ≡ QPRS).
Pengertian Kesebangunan pada Bangun Datar
Selain kongruen, ada juga yang disebut dengan sebangun. Kalau kesebangunan adalah istilah yang digunakan untuk menyatakan dua bangun datar yang memiliki proporsi yang mirip satu sama lain.
Mmm, gampangnya sih, kalau kamu menemukan dua bangun datar yang bentuknya sama tapi ukurannya berbeda, maka dua bangun datar tersebut dapat dikatakan sebangun.
Kesebangunan disimbolkan dengan “≈” yang dibaca sebagai “sebangun dengan”.
Baca Juga: Rumus Luas dan Volume Bola, Cara Menghitung & Contohnya
Contoh Kesebangunan
Contoh sebangun tuh gini, kamu tahu gak berapa luas negara Indonesia?
Wilayah Indonesia terbentang sepanjang 3.977 mil di antara Samudra Hindia dan Samudra Pasifik. Luas daratannya 1.922.570 km² dan luas perairannya 3.257.483 km². Dengan ukuran seluas itu, gak mungkin ya bisa menggambar Indonesia di atas selembar kertas dengan ukuran sesungguhnya.
Agar bisa menggambar peta Indonesia, digunakanlah skala. Nah, kalau misalkan petanya memakai skala 1:1.000.000 berarti 1 cm di peta sama dengan 1.000.000 cm pada aslinya. Karena skala merupakan perbandingan, maka peta juga termasuk contoh kesebangunan.
Selain peta, ada apalagi ya yang sebangun?
Syarat Kesebangunan pada Bangun Datar
Kalau kita bicara dalam konteks bangun datar, selain perbandingan panjang yang sama, agar bisa disebut sebangun, dua bangun datar harus memenuhi syarat:
- Sudut-sudut yang bersesuaian sama besar
- Sisi-sisi yang bersesuaian memiliki perbandingan yang sama
Yuk, kita perhatikan gambar di bawah biar kamu nggak bingung!
Contoh bangun datar yang sebangun. (Sumber: kompas.com)
Kita bedah satu per satu, ya.
-
Sudut-sudut yang bersesuaian sama besar
Sama seperti syarat dua bangun yang kongruen, pada bangun datar yang sebangun juga harus memiliki besar sudut yang sama. Nah, pada segitiga ABC dan DEF, keduanya juga memiliki sudut-sudut yang sama besar, loh. Besar ∠A = ∠D = 90°, ∠B = ∠E = 55°, dan ∠C = ∠F = 35°.
-
Sisi-sisi yang bersesuaian memiliki perbandingan yang sama
Selain itu, sisi-sisi yang bersesuaian antara segitiga ABC dengan segitiga DEF juga memiliki perbandingan yang sama.
- Sisi AB dan sisi DE memiliki perbandingan 10 : 5 = 1 : 2
- Sisi CA dan sisi FD memiliki perbandingan 20 : 10 = 1 : 2
Karena kedua syarat kesebangunan telah terbukti, maka bisa dikatakan kalau segitiga ABC sebangun dengan segitiga DEF (ABC ≈ DEF).
Apa Bedanya Kesebangunan dan Kongruen?
Gimana nih sampai sini, apakah kamu sudah bisa membedakan antara benda yang sebangun dan kongruen?
Hal mendasar yang membedakan kongruen dan sebangun adalah, kalau kongruen sisi-sisi yang bersesuaian harus sama panjang, sedangkan kalau sebangun perbandingan sisi-sisi yang bersesuaian harus sama besar. Jadi, semua bangun yang kongruen udah pasti sebangun, tapi kalau sebangun belum tentu kongruen ya.
Baca Juga: Macam-Macam Transformasi Geometri, Sifat & Contoh Soal
Contoh Soal Kesebangunan dan Kekongruenan
1. Pada ∠ABC, diketahui AC ≡ DE. Bila panjang BE = x cm, maka nilai x adalah …
Pembahasan:
Diketahui:
AD = 5 cm
DB = 7 cm
AB = 5 cm + 7 cm = 12 cm
CE = 4 cm
AC ≡ DE
Ditanya: BE … ?
Jadi, diketahui nilai x = 5,6 cm.
2. Perhatikan gambar berikut!
Jika panjang AB = 12 cm dan BC = 15 cm, maka panjang AD adalah …
Pembahasan:
Diketahui:
AB = 12 cm
BC = 15 cm
Ditanya: AD … ?
Jadi, panjang AD adalah 9,6 cm.
—
Sekarang kamu udah paham kan bedanya kongruen dan sebangun? Kalau kamu masih ada pertanyaan seputar materi kesebangunan dan kongruen atau materi lainnya, bisa lho langsung tonton videonya di ruangbelajar biar belajar kamu makin seru!
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<h1 class="content-title">
Perbedaan Kesebangunan dan Kongruen pada Bangun Datar | Matematika Kelas 9 </h1>
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<p class="content-author"><a href="https://www.ruangguru.com/blog/author/syifa-chaerunnisa" class="">Syifa Chaerunnisa</a> </p>
<p class="content-info"><span>January 10, 2025 • </span> <span>5 minutes read</span></p>
<br />
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<p><img decoding="async" class="aligncenter size-medium" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/ce1fd665-63a6-4b74-876a-dec261685f6a.png" alt="perbedaan kesebangunan dan kongruen" /></p>
<blockquote>
<p style="text-align: center;"><em><strong><a href="https://www.ruangguru.com/blog/c/matematika/matematika-smp-kelas-9">Artikel Matematika kelas 9</a></strong> ini akan menjelaskan tentang <strong>perbedaan kekongruenan dan kesebangunan dalam bangun datar</strong> berdasarkan ciri-cirinya. Yuk, belajar bersama!</em></p>
</blockquote>
<p style="text-align: center;">—</p>
<p> </p>
<p style="text-align: justify;">Pernah <em>gak</em> ketika kamu ngerjain tugas kelompok, ada <em>aja</em> anggota kelompok yang <em>malah</em> mainan <em>smartphone</em>. <em>Hayo</em>, siapa yang kayak gini?</p>
<p style="text-align: justify;">Salah satu tips agar fokus mengerjakan tugas adalah dengan mengumpulkan semua <em>smartphone</em> di satu tempat, biar <em>gak</em> ada yang <em>mainin</em>. Kamu pernah kayak gini gak?</p>
<p style="text-align: justify;">Emang ya, mengumpulkan <em>smartphone </em>di satu tempat bisa bikin lebih fokus ngerjain tugas. Pas <em>udah</em> selesai ngerjain dan mau <em>ngambil</em> <em>smartphone</em>, pastikan kalau kamu <em>gak</em> salah ambil ya, siapa tau ada yang tipe <em>smartphone</em>nya sama kayak kamu.</p>
<p style="text-align: justify;">Kalau di dalam matematika, benda yang sama persis ada sebutannya <em>lho</em>, yaitu <strong>kongruen. </strong>Kalau dalam hubungan, butuh dua hati yang kongruen biar bisa bersatu. Jadi, kalau ngerasa ada yang beda, udah gak kongruen lagi, gak usah dipaksain ya.</p>
<p>Loh, loh, kok malah jadi ngelantur gini sih. <em>Hehehe</em>…</p>
<p style="text-align: justify;">Dalam materi bangun datar, selain mengenal berbagai macam bangun datar, sifat-sifat, hingga rumus mencari luas dan kelilingnya, kamu juga akan mempelajari tentang istilah <strong>kongruen dan sebangun</strong>. Wah, apa tuh ya? Yuk, kita simak bersama di artikel ini!</p>
<p><strong>Baca Juga: <a href="https://www.ruangguru.com/blog/rumus-luas-dan-keliling-bangun-datar">Rumus Bangun Datar (Luas dan Keliling) serta Contohnya</a></strong></p>
<p> </p>
<h2 style="text-align: justify;"><span style="font-size: 18pt;">Pengertian Kekongruenan pada Bangun Datar</span></h2>
<p style="text-align: justify;">Sederhananya, <strong>kongruen adalah</strong> istilah yang digunakan untuk <strong>menyatakan dua bangun datar yang sama persis</strong>. Baik itu ukurannya, sifatnya, maupun sudut yang dimilikinya.</p>
<p style="text-align: justify;">Nah, kongruen dilambangkan dengan simbol <strong>“≡” atau “≅”</strong>. Kamu bisa membacanya dengan sebutan “tanda sama dengan garis ganda”. Artinya, dua objek tersebut memiliki kesamaan yang sama persis (kongruen).</p>
<p style="text-align: justify;">Contoh kekongruenan sering kita temui dalam kehidupan kita, loh! Contohnya aja, jendela yang ada di ruang tamu kamu. Pasti punya bentuk yang sama persis. Atau, kalau di sekolah ada temen kamu yang punya <em>smartphone</em> dengan merk dan tipe serupa dengan kamu, itu tandanya HP kamu dan temanmu kongruen!</p>
<p><strong>Baca Juga: <a href="https://www.ruangguru.com/blog/rumus-luas-dan-volume-kerucut">Rumus Luas & Volume Kerucut serta Contoh Soalnya</a></strong></p>
<p> </p>
<h2><span style="font-size: 18pt;">Contoh Kekongruenan</span></h2>
<p><img decoding="async" style="width: 600px; display: block; margin: 0px auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/terserah%201.png" alt="terserah 1 - kekongruenan dan kesebangunan bangun datar" width="600" /></p>
<p> </p>
<h2><span style="font-size: 18pt;">Syarat Kongruen pada Bangun Datar</span></h2>
<p style="text-align: justify;">Dua bangun yang sama persis emang disebut sebagai kongruen. Tapi, secara formal, dalam konteks bangun datar, dua buah bangun datar dapat dikatakan kongruen jika memenuhi dua syarat, yaitu:</p>
<ul>
<li><strong>Sudut-sudut yang bersesuaian sama besar</strong></li>
<li><strong>Sisi-sisi yang bersesuaian sama panjang</strong></li>
</ul>
<p> </p>
<p>Oke, supaya kamu lebih paham, coba perhatikan gambar di bawah ini, deh!</p>
<p><img decoding="async" class="aligncenter size-medium" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/5d53463a-01be-448c-8bca-6906a4eee1b2.png" alt="contoh gambar kongruen" /></p>
<p style="text-align: center;">Contoh bangun datar yang kongruen. (Sumber: deni11math.wordpress.com)</p>
<p> </p>
<p>Kalau kita bedah berdasarkan sifat-sifatnya, maka:</p>
<p> </p>
<ul>
<li>
<h3><span style="font-size: 14pt;"><strong>Sudut-sudut yang bersesuaian sama besar</strong></span></h3>
</li>
</ul>
<p style="text-align: justify;">Persegi panjang ABCD dan persegi panjang QPRS memiliki sudut-sudut yang sama besar, yaitu ∠A = ∠Q, ∠B = ∠P, ∠C = ∠R, ∠D = ∠S. Sudut-sudut tersebut sama-sama merupakan sudut siku-siku 90°.</p>
<p> </p>
<ul>
<li>
<h3><span style="font-size: 14pt;"><strong>Sisi-sisi yang bersesuaian sama panjang</strong></span></h3>
</li>
</ul>
<p style="text-align: justify;">Kemudian, sisi-sisi yang bersesuaian pada persegi panjang ABCD dan persegi panjang QPRS juga memiliki panjang yang sama. Sisi AB = sisi QP, sisi BC = sisi PR, sisi CD = sisi RS, sisi DA = sisi SQ.</p>
<p style="text-align: justify;">Nah, karena kedua syarat kekongruenan telah terpenuhi, maka dapat dikatakan bahwa persegi panjang ABCD kongruen dengan persegi panjang QPRS (ABCD <strong>≡ </strong>QPRS).</p>
<p> </p>
<h2><span style="font-size: 18pt;">Pengertian Kesebangunan pada Bangun Datar</span></h2>
<p style="text-align: justify;">Selain kongruen, ada juga yang disebut dengan sebangun. Kalau <strong>kesebangunan adalah</strong> istilah yang digunakan untuk <strong>menyatakan dua bangun datar yang memiliki proporsi yang mirip satu sama lain</strong>.</p>
<p style="text-align: justify;">Mmm, gampangnya sih, kalau kamu menemukan dua bangun datar yang bentuknya sama tapi ukurannya berbeda, maka dua bangun datar tersebut dapat dikatakan sebangun.</p>
<p>Kesebangunan disimbolkan dengan <strong>“≈”</strong> yang dibaca sebagai “sebangun dengan”.</p>
<p><strong>Baca Juga: <a href="https://www.ruangguru.com/blog/menghitung-luas-dan-volume-bola">Rumus Luas dan Volume Bola, Cara Menghitung & Contohnya</a></strong></p>
<p> </p>
<h2><span style="font-size: 18pt;">Contoh Kesebangunan</span></h2>
<p style="text-align: justify;">Contoh sebangun tuh gini, kamu tahu <em>gak</em> berapa luas negara Indonesia?</p>
<p style="text-align: justify;">Wilayah Indonesia terbentang sepanjang 3.977 mil di antara Samudra Hindia dan Samudra Pasifik. Luas daratannya 1.922.570 km² dan luas perairannya 3.257.483 km². Dengan ukuran seluas itu, <em>gak</em> mungkin ya bisa menggambar Indonesia di atas selembar kertas dengan ukuran sesungguhnya.</p>
<p style="text-align: justify;">Agar bisa menggambar peta Indonesia, digunakanlah <strong><a href="https://www.ruangguru.com/blog/jenis-jenis-peta-dan-penggunaannya">skala</a></strong>. Nah, kalau misalkan petanya memakai skala 1:1.000.000 berarti 1 cm di peta sama dengan 1.000.000 cm pada aslinya. Karena skala merupakan perbandingan, maka peta juga termasuk contoh kesebangunan.</p>
<p style="text-align: justify;">Selain peta, ada apalagi ya yang sebangun?</p>
<p><img decoding="async" style="width: 600px; display: block; margin: 0px auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Terserah%203-1.png" alt="Terserah 3-1" width="600" /></p>
<p> </p>
<h2><span style="font-size: 18pt;">Syarat Kesebangunan pada Bangun Datar</span></h2>
<p style="text-align: justify;">Kalau kita bicara dalam konteks bangun datar, selain perbandingan panjang yang sama, agar bisa disebut sebangun, dua bangun datar harus memenuhi syarat:</p>
<ul>
<li><strong>Sudut-sudut yang bersesuaian sama besar</strong></li>
<li><strong>Sisi-sisi yang bersesuaian memiliki perbandingan yang sama</strong></li>
</ul>
<p> </p>
<p>Yuk, kita perhatikan gambar di bawah biar kamu nggak bingung!</p>
<p><img decoding="async" class="aligncenter size-medium" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/bb393c0f-3f17-4621-9461-fd17a634145c.png" alt="contoh benda yang sebangun" width="300" /></p>
<p style="text-align: center;">Contoh bangun datar yang sebangun. (Sumber: kompas.com)</p>
<p> </p>
<p>Kita bedah satu per satu, ya.</p>
<p> </p>
<ul>
<li>
<h3><span style="font-size: 14pt;"><strong>Sudut-sudut yang bersesuaian sama besar</strong></span></h3>
</li>
</ul>
<p style="text-align: justify;">Sama seperti syarat dua bangun yang kongruen, pada bangun datar yang sebangun juga harus memiliki besar sudut yang sama. Nah, pada segitiga ABC dan DEF, keduanya juga memiliki sudut-sudut yang sama besar, loh. Besar ∠A = ∠D = 90°, ∠B = ∠E = 55°, dan ∠C = ∠F = 35°.</p>
<p> </p>
<ul>
<li>
<h3><span style="font-size: 14pt;"><strong>Sisi-sisi yang bersesuaian memiliki perbandingan yang sama</strong></span></h3>
</li>
</ul>
<p style="text-align: justify;">Selain itu, sisi-sisi yang bersesuaian antara segitiga ABC dengan segitiga DEF juga memiliki perbandingan yang sama.</p>
<ul style="list-style-type: circle;">
<li style="text-align: justify;">Sisi AB dan sisi DE memiliki perbandingan 10 : 5 = 1 : 2</li>
<li style="text-align: justify;">Sisi CA dan sisi FD memiliki perbandingan 20 : 10 = 1 : 2</li>
</ul>
<p> </p>
<p>Karena kedua syarat kesebangunan telah terbukti, maka bisa dikatakan kalau segitiga ABC sebangun dengan segitiga DEF (ABC <strong>≈</strong> DEF).</p>
<p> </p>
<h2><span style="font-size: 18pt;">Apa Bedanya Kesebangunan dan Kongruen?</span></h2>
<p style="text-align: justify;">Gimana nih sampai sini, apakah kamu sudah bisa membedakan antara benda yang sebangun dan kongruen?</p>
<p style="text-align: justify;">Hal mendasar yang membedakan kongruen dan sebangun adalah, kalau <strong>kongruen sisi-sisi yang bersesuaian harus sama panjang</strong>, sedangkan kalau <strong>sebangun perbandingan sisi-sisi yang bersesuaian harus sama besar</strong>. Jadi, semua bangun yang kongruen udah pasti sebangun, tapi kalau sebangun belum tentu kongruen ya.</p>
<p><strong>Baca Juga: <a href="https://www.ruangguru.com/blog/pengertian-dan-jenis-jenis-transformasi-geometri">Macam-Macam Transformasi Geometri, Sifat & Contoh Soal</a></strong></p>
<p> </p>
<h2><span style="font-size: 18pt;">Contoh Soal Kesebangunan dan Kekongruenan</span></h2>
<p>1. Pada ∠ABC, diketahui AC <strong>≡ </strong>DE. Bila panjang BE = x cm, maka nilai x adalah …</p>
<p><img decoding="async" class="aligncenter size-medium" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/edb3029b-9321-4e10-a6f9-ce62e922ca79.png" alt="contoh soal sebangun" /></p>
<p> </p>
<p><strong>Pembahasan:</strong></p>
<p>Diketahui:</p>
<p>AD = 5 cm</p>
<p>DB = 7 cm</p>
<p>AB = 5 cm + 7 cm = 12 cm</p>
<p>CE = 4 cm</p>
<p>AC <strong>≡ </strong>DE</p>
<p>Ditanya: BE … ?</p>
<p><img decoding="async" class="size-medium alignnone" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/29cd9c2f-51c4-49e3-a8ad-24d98586f6c4.png" alt="penyelesaian soal sebangun" /></p>
<p>Jadi, diketahui nilai x = 5,6 cm.</p>
<p> </p>
<p>2. Perhatikan gambar berikut!</p>
<p><img decoding="async" class="aligncenter size-medium" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/ae873484-3345-4a23-bfca-7bd2bfcc41e7.png" alt="contoh soal kongruen" /></p>
<p> </p>
<p>Jika panjang AB = 12 cm dan BC = 15 cm, maka panjang AD adalah …</p>
<p> </p>
<p><strong>Pembahasan:</strong></p>
<p>Diketahui:</p>
<p>AB = 12 cm</p>
<p>BC = 15 cm</p>
<p>Ditanya: AD … ?</p>
<p><img decoding="async" class="size-medium alignnone" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/682fb8f2-a7ad-4a83-93c7-62f497f2b8e6.png" alt="penyelesaian soal kongruen" /></p>
<p>Jadi, panjang AD adalah 9,6 cm.</p>
<p style="text-align: center;">—</p>
<p style="text-align: justify;">Sekarang kamu udah paham kan bedanya kongruen dan sebangun? Kalau kamu masih ada pertanyaan seputar materi kesebangunan dan kongruen atau materi lainnya, bisa <em>lho </em>langsung tonton videonya di <a href="https://www.ruangguru.com/ruangbelajar"><strong>ruangbelajar</strong></a> biar belajar kamu makin seru!</p>
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<div class="d-lg-none text-center">
<nav class="footer-menu social">
<p class="title">Ikuti Kami</p>
<a target="_blank" href="https://www.instagram.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/instagram.png" loading="lazy" alt="Logo Instagram Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.facebook.com/ruanggurucom/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/facebook.png" loading="lazy" alt="Logo Facebook Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://twitter.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/twitter.png" loading=" lazy" alt="Logo Twitter Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.youtube.com/ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/youtube.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/youtube.png" loading=" lazy" alt="Logo Youtube Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.linkedin.com/company/ruangguru-com">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/linkedin.png" loading=" lazy" alt="Logo LinkedIn Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.tiktok.com/@ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/tiktok.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/tiktok.png" loading=" lazy" alt="Logo TikTok Footer" width="32px" height="32px" />
</picture>
</a>
</nav>
</div>
<p class="footer-copyright">
© 2026 All Rights Reserved PT. Ruang Raya Indonesia
</p>
</div>
<style>
.bantuan-container {
position: relative;
}
.bantuan-element {
position: fixed;
z-index: 999;
display: flex;
align-items: flex-end;
justify-content: flex-end;
cursor: pointer;
transition: all 0.6s ease;
}
.bantuan-top {
bottom: 11rem;
right: 2rem;
}
.bantuan-bottom {
bottom: 2rem;
right: 2rem;
}
.bantuan-top-2 {
bottom: 15rem;
right: 2rem;
}
.bantuan-top-3 {
bottom: 19rem;
right: 2rem;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 2rem;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 2rem;
}
@media (min-width: 768px) {
.bantuan-element img {
width: auto;
transition: all 0.4s ease;
}
.bantuan-top img {
width: 140px;
}
.bantuan-bottom img {
width: 140px;
}
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 140px;
}
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 140px;
}
.bantuan-element.clicked {
bottom: 9rem;
right: 2.5rem;
}
.bantuan-element.clicked img {
width: auto;
height: 64px;
}
}
@media (max-width: 767px) {
.bantuan-top {
bottom: 8rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom {
bottom: 2rem;
right: 1.25rem;
align-items: center;
}
.bantuan-top-2 {
bottom: 12rem;
right: 1rem;
align-items: center;
}
.bantuan-top-3 {
bottom: 16rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 1.25rem;
align-items: center;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 1.25rem;
align-items: center;
}
.bantuan-element img {
width: auto;
}
.bantuan-top img,
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 96px;
}
.bantuan-bottom img,
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 96px;
}
}
.bantuan-element:hover {
transform: scale(1.05);
}
.bantuan-element img {
max-width: 100%;
height: auto;
}
</style>
<div id="bantuan-divs-container" style="position: relative" data-product="ruangguru" data-table="rg_floating_icon"></div>
<script>
class FloatingDivsComponent {
constructor(product = 'ruangguru', table = 'rg_floating_icon') {
this.container = document.getElementById('bantuan-divs-container');
this.floatingElements = [];
this.product = product;
this.table = table;
// Configuration
this.config = {
baseApiUrl: 'https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/rg_banner/views/',
apiKey: 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
maxElements: 2,
zIndexBase: 100,
};
// Build dynamic API URL based on table parameter
this.config.apiUrl = this.buildApiUrl();
this.init();
}
buildApiUrl() {
const baseUrl = this.config.baseApiUrl;
const tableName = this.table || 'rg_floating_icon';
const queryParams =
'offset=0&limit=99999&sort=rankPosition&where=(type,eq,floating)~and(showIn,anyof,blog)~and(hide,is,false)~and(product,eq,' +
this.product +
')&nested%5Bcta%5D%5Bfields%5D=Id,name,ctaId,imageUrl,ctaLink,targetUrl';
return `${baseUrl}${tableName}?${queryParams}`;
}
async init() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to initialize floating divs component:', error);
}
}
async fetchFloatingElements() {
try {
const options = {
method: 'GET',
headers: {
'xc-token': this.config.apiKey || 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
},
};
const urlNoco = this.config.apiUrl;
const response = await fetch(urlNoco, options);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
this.floatingElements = this.processApiResponse(data);
} catch (error) {
console.error('Error fetching floating elements:', error);
throw error;
}
}
processApiResponse(data) {
if (!data || !data.list || !Array.isArray(data.list)) {
return [];
}
console.log(data.list);
// Ensure we only get maximum 2 elements
const limitedElements = data.list.slice(0, this.config.maxElements);
return limitedElements;
}
renderFloatingElements() {
if (!this.container || this.floatingElements.length === 0) {
return;
}
// Additional safeguard: ensure we never render more than maxElements
const elementsToRender = this.floatingElements.slice(0, this.config.maxElements);
// Clean up existing elements and their event listeners
this.cleanupExistingElements();
// Clear existing content
this.container.innerHTML = '';
elementsToRender.forEach((element, index) => {
const floatingDiv = this.createFloatingDiv(element, index);
this.container.appendChild(floatingDiv);
});
}
cleanupExistingElements() {
// Clear existing elements (no need for event listener cleanup with CSS approach)
const existingElements = this.container.querySelectorAll('[data-floating-element]');
existingElements.forEach(element => {
element.remove();
});
}
createFloatingDiv(element, index) {
const div = document.createElement('div');
const cta = element.cta[0]; // Use the first CTA
// Add data attribute for cleanup tracking
div.setAttribute('data-floating-element', 'true');
// Apply CSS classes based on rankPosition
const positionClass = this.getPositionClass(element.rankPosition, index);
div.className = `bantuan-element ${positionClass}`;
div.style.zIndex = this.config.zIndexBase + index;
// Create the link and image
const link = document.createElement('a');
link.href = 'https://cta.ruangguru.com/' + cta.ctaId || '#';
link.target = '_blank';
// Add tracking attributes
link.setAttribute('data-tracking-event-type', 'landing_page__core__item_click');
link.setAttribute(
'data-tracking-context',
JSON.stringify({
product_name: this.product,
cta_action: 'redirection',
cta_action_detail: link.href,
item_type: 'floating',
item_name: element.name || 'Floating element',
item_category: 'payment',
item_position: index,
item_serial: null,
section_type: 'floating_item',
section_position: 'body',
section_name: 'floating_item',
})
);
const img = document.createElement('img');
img.src = element.imageUrl + '?h=200&convert=webp';
img.alt = element.name || 'Floating element';
img.loading = 'lazy';
// Add click tracking
link.addEventListener('click', () => {
this.trackClick(element, cta);
});
link.appendChild(img);
div.appendChild(link);
return div;
}
getPositionClass(rankPosition, index) {
// Define positioning classes based on rankPosition
if (rankPosition === 1) {
return 'bantuan-top'; // Top position
} else if (rankPosition === 2) {
return 'bantuan-bottom'; // Bottom position
} else {
// For additional elements, distribute them evenly
return `bantuan-${index % 2 === 0 ? 'top' : 'bottom'}-${Math.floor(index / 2) + 1}`;
}
}
trackClick(element, cta) {
// Implement click tracking logic here
console.log('Floating element clicked:', {
elementId: element.Id,
elementName: cta.name,
ctaId: cta.ctaId,
targetUrl: cta.targetUrl,
});
}
// Public method to manually refresh
async refresh() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to refresh floating elements:', error);
throw error;
}
}
// Public method to get current floating elements
getFloatingElements() {
return [...this.floatingElements];
}
}
// Initialize the component when DOM is ready
document.addEventListener('DOMContentLoaded', () => {
// Get product and table parameters from data attributes
const container = document.getElementById('bantuan-divs-container');
const product = container.getAttribute('data-product') || 'ruangguru';
const table = container.getAttribute('data-table') || 'rg_floating_icon';
new FloatingDivsComponent(product, table);
});
// Export for use in other modules if needed
if (typeof module !== 'undefined' && module.exports) {
module.exports = FloatingDivsComponent;
}
</script> <div id="wp-install-nudge" style="
position: fixed;
bottom: 0rem;
right: 0;
z-index: 999;
cursor: pointer;
"></div>
<script>
(function (w, d, s, o, f, js, fjs) {
w['Sales-Nudge-Widget'] = o; w[o] = w[o] || function () { (w[o].q = w[o].q || []).push(arguments) };
js = d.createElement(s), fjs = d.getElementsByTagName(s)[0];
js.id = o; js.src = f; js.async = 1; fjs.parentNode.insertBefore(js, fjs);
}(window, document, 'script', 'wpInstallNudge', 'https://cdn-web-2.ruangguru.com/sales-nudge/6198a95130/dist/widget.js'));
wpInstallNudge('init', { targetElementId: 'wp-install-nudge', clientTarget: 'ruangguru_blog' });
</script>
<script>
// note: disabled due to auto reload page
// var lastScrollTop = 0;
// $(window).scroll(function(event){
// var st = $(this).scrollTop();
// if (st > lastScrollTop){
// $('#wp-install-nudge').slideDown( "slow", function() {});
// } else {
// $('#wp-install-nudge').slideUp( "slow", function() {});
// }
// lastScrollTop = st;
// });
// $(document).ready(function () {
// $("#wp-install-nudge").hide();
// });
$('#wp-install-nudge').click(function(){
Analytics.track("promotion__install_nudge__click",
{
user_email: "ruangguru@blog.com",
cta_link: widgetData.dataConfig.target_link
}).catch((err) => {
console.log("tracker error", err);
});
});
</script>
</footer>
<div id="__next"></div>
<script type="speculationrules">
{"prefetch":[{"source":"document","where":{"and":[{"href_matches":"\/blog\/*"},{"not":{"href_matches":["\/blog\/wp-*.php","\/blog\/wp-admin\/*","\/blog\/wp-content\/uploads\/*","\/blog\/wp-content\/*","\/blog\/wp-content\/plugins\/*","\/blog\/wp-content\/themes\/ruangguru\/*","\/blog\/*\\?(.+)"]}},{"not":{"selector_matches":"a[rel~=\"nofollow\"]"}},{"not":{"selector_matches":".no-prefetch, .no-prefetch a"}}]},"eagerness":"conservative"}]}
</script>
<script>
async function getCtaDetails(ctaIds) {
const endpoint =
" https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/CTA/views/CTA?offset=0&limit=10&where=(ctaId,in," + ctaIds.toString() + ")";
try {
const response = await fetch(endpoint, {
headers: {
"xc-token": "-hG2nBDJzSj0agSgNtcJx97M4F02y54nUMoY6plJ",
},
});
const data = await response.json();
const ctaList = data?.list || [];
const ctaMap = new Map();
for (const ctaData of ctaList) {
ctaMap.set(ctaData.ctaId, ctaData);
}
return ctaMap;
} catch (error) {
console.error("Error fetching CTA details:", error);
return new Map();
}
}
async function replaceCTA() {
const regex = /{{cta\((‘(.*?)’|“(.*?)”)\)}}/g;
const bodyHTML = document.body.innerHTML;
const matches = Array.from(bodyHTML.matchAll(regex));
const ctaIds = matches.map((match) => {
let ctaId = match[2] ?? match[3];
return ctaId;
});
const ctaMap = await getCtaDetails(ctaIds);
const replacedHTML = bodyHTML.replace(regex, (match, _inner, ctaId1, ctaId2) => {
const ctaId = ctaId1 ?? ctaId2;
const ctaData = ctaMap.get(ctaId);
if (ctaData) {
return `<a href="https://cta.ruangguru.com/${ctaData.ctaId}" target="_${ctaData.targetType}" style="position:relative;display:inline-block;">
<img src="${ctaData.imageUrl}" loading="lazy" alt="${ctaData.altText}" />
</a>`;
} else {
return match;
}
});
document.body.innerHTML = replacedHTML;
}
</script>
<meta name="author" content="Ruangguru Tech Team">
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PVNLZFT" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- Tracker -->
<script type="text/javascript" src="https://cdn-web-2.ruangguru.com/landing-page-web/public/staticpages/global-assets/js/cta.js"></script>
<script src="https://unpkg.com/@dotlottie/player-component@latest/dist/dotlottie-player.mjs" type="module"></script>
</body>
</html>