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<p>Last updated on<strong>September 26, 2025</strong></p>
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<p>Last updated on<strong>September 26, 2025</strong></p>
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<p>The perimeter of a shape is the total length of its boundary. The sum of all five sides is called the perimeter of a pentagon. Perimeter is also used for fencing a property, sewing, and more. In this topic, we will learn about the perimeter of a pentagon.</p>
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<p>The perimeter of a shape is the total length of its boundary. The sum of all five sides is called the perimeter of a pentagon. Perimeter is also used for fencing a property, sewing, and more. In this topic, we will learn about the perimeter of a pentagon.</p>
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<h2>What is the Perimeter of a Pentagon?</h2>
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<h2>What is the Perimeter of a Pentagon?</h2>
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<p>The perimeter<a>of</a>a pentagon is the total length of its five sides. By adding the length of all five sides, we get the perimeter of the shape.</p>
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<p>The perimeter<a>of</a>a pentagon is the total length of its five sides. By adding the length of all five sides, we get the perimeter of the shape.</p>
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<p>The<a>formula</a>for the perimeter of a pentagon is 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒, where a, b, c, d, and e are the sides of the pentagon. For instance, if a pentagon has sides, a = 5, b = 7, c = 6, d = 9, and e = 4, then its perimeter is p = 5 + 7 + 6 + 9 + 4 = 31.</p>
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<p>The<a>formula</a>for the perimeter of a pentagon is 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒, where a, b, c, d, and e are the sides of the pentagon. For instance, if a pentagon has sides, a = 5, b = 7, c = 6, d = 9, and e = 4, then its perimeter is p = 5 + 7 + 6 + 9 + 4 = 31.</p>
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<h2>Formula for Perimeter of Pentagon - 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒.</h2>
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<h2>Formula for Perimeter of Pentagon - 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒.</h2>
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<p>Let’s consider another example of a pentagon with side lengths, 𝑎 = 11, 𝑏 = 8, 𝑐 = 10, 𝑑 = 7, and 𝑒 = 9.</p>
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<p>Let’s consider another example of a pentagon with side lengths, 𝑎 = 11, 𝑏 = 8, 𝑐 = 10, 𝑑 = 7, and 𝑒 = 9.</p>
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<p>So the perimeter of the pentagon will be: 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒 = 11 + 8 + 10 + 7 + 9 = 45.</p>
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<p>So the perimeter of the pentagon will be: 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒 = 11 + 8 + 10 + 7 + 9 = 45.</p>
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<h2>How to Calculate the Perimeter of Pentagon</h2>
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<h2>How to Calculate the Perimeter of Pentagon</h2>
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<p>To find the perimeter of a pentagon, we just need to apply the given formula and<a>sum</a>all the sides of the pentagon. For instance, a given pentagon has the sides of a = 6, b = 5, c = 5, d = 6, and e = 8. Perimeter = sum of all sides = 6 + 5 + 5 + 6 + 8 = 30 cm.</p>
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<p>To find the perimeter of a pentagon, we just need to apply the given formula and<a>sum</a>all the sides of the pentagon. For instance, a given pentagon has the sides of a = 6, b = 5, c = 5, d = 6, and e = 8. Perimeter = sum of all sides = 6 + 5 + 5 + 6 + 8 = 30 cm.</p>
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<p>Example Problem on Perimeter of Pentagon</p>
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<p>Example Problem on Perimeter of Pentagon</p>
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<p>For finding the perimeter of a pentagon, we use the formula, 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒.</p>
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<p>For finding the perimeter of a pentagon, we use the formula, 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒.</p>
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<p>For example, let’s say, a = 7 cm, b = 9 cm, c = 4 cm, d = 5 cm, and e = 6 cm.</p>
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<p>For example, let’s say, a = 7 cm, b = 9 cm, c = 4 cm, d = 5 cm, and e = 6 cm.</p>
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<p>Now, the perimeter = sum of all sides = 7 + 9 + 4 + 5 + 6 = 31 cm.</p>
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<p>Now, the perimeter = sum of all sides = 7 + 9 + 4 + 5 + 6 = 31 cm.</p>
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<p>Therefore, the perimeter of the pentagon is 31 cm.</p>
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<p>Therefore, the perimeter of the pentagon is 31 cm.</p>
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<h3>Explore Our Programs</h3>
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<h3>Explore Our Programs</h3>
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<h2>Tips and Tricks for Perimeter of Pentagon</h2>
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<h2>Tips and Tricks for Perimeter of Pentagon</h2>
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<p>Learning some tips and tricks makes it easier for children to calculate the perimeter of pentagons. Here are some tips and tricks given below: Always remember that a pentagon's perimeter is simply the sum of the five sides of the shape.</p>
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<p>Learning some tips and tricks makes it easier for children to calculate the perimeter of pentagons. Here are some tips and tricks given below: Always remember that a pentagon's perimeter is simply the sum of the five sides of the shape.</p>
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<p>For that, use the formula, 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒. Calculating the perimeter of a pentagon starts by determining the length of each side using the distance formula. The distance formula is: Distance = √((x2-x1)² + (y2-y1)²). Here, (x1, y1) and (x2, y2) indicate the positions of two points that make up a pentagon’s side.</p>
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<p>For that, use the formula, 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒. Calculating the perimeter of a pentagon starts by determining the length of each side using the distance formula. The distance formula is: Distance = √((x2-x1)² + (y2-y1)²). Here, (x1, y1) and (x2, y2) indicate the positions of two points that make up a pentagon’s side.</p>
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<p>They can be found by adding the lengths of five sides after they are calculated. To reduce confusion, specifically arrange the indicated side lengths if you need the perimeter of a group of pentagons. After that, apply the formula to each pentagon.</p>
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<p>They can be found by adding the lengths of five sides after they are calculated. To reduce confusion, specifically arrange the indicated side lengths if you need the perimeter of a group of pentagons. After that, apply the formula to each pentagon.</p>
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<p>To avoid mistakes when adding the perimeter, make sure the side lengths are precise and<a>constant</a>for common uses like gardening and architecture. If you are given the semi-perimeter, which is half the perimeter, you can multiply it by 2 to determine the full perimeter. Area-related calculations often use the semi-perimeter.</p>
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<p>To avoid mistakes when adding the perimeter, make sure the side lengths are precise and<a>constant</a>for common uses like gardening and architecture. If you are given the semi-perimeter, which is half the perimeter, you can multiply it by 2 to determine the full perimeter. Area-related calculations often use the semi-perimeter.</p>
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<h2>Common Mistakes and How to Avoid Them in Perimeter of Pentagon</h2>
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<h2>Common Mistakes and How to Avoid Them in Perimeter of Pentagon</h2>
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<p>Did you know that while working with the perimeter of a pentagon, children might encounter some errors or difficulties?</p>
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<p>Did you know that while working with the perimeter of a pentagon, children might encounter some errors or difficulties?</p>
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<p>We have many solutions to resolve these problems. Here are some given below:</p>
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<p>We have many solutions to resolve these problems. Here are some given below:</p>
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<h3>Problem 1</h3>
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<h3>Problem 1</h3>
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<p>A garden plot is shaped like a pentagon and has a perimeter of 60 meters. Four sides measure 12 meters each. To find out the missing side, subtract the sum of the known sides from the total perimeter.</p>
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<p>A garden plot is shaped like a pentagon and has a perimeter of 60 meters. Four sides measure 12 meters each. To find out the missing side, subtract the sum of the known sides from the total perimeter.</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>Length of the missing side = 12 meters.</p>
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<p>Length of the missing side = 12 meters.</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>Let ‘e’ be the side of the missing side. And the given perimeter = 60 meters.</p>
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<p>Let ‘e’ be the side of the missing side. And the given perimeter = 60 meters.</p>
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<p>Length of the four equal sides = 12 meters.</p>
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<p>Length of the four equal sides = 12 meters.</p>
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<p>Perimeter of pentagon = sum of lengths of five sides.</p>
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<p>Perimeter of pentagon = sum of lengths of five sides.</p>
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<p>60 = 12 + 12 + 12 + 12 + e 60 = 48 + e e = 60 - 48 = 12 e = 12</p>
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<p>60 = 12 + 12 + 12 + 12 + e 60 = 48 + e e = 60 - 48 = 12 e = 12</p>
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<p>Therefore, the missing side is 12 meters.</p>
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<p>Therefore, the missing side is 12 meters.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 2</h3>
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<h3>Problem 2</h3>
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<p>A wire with a perimeter of 100 inches is reshaped into a regular pentagon. Find the length of each side of the pentagon and divide the total length by 5.</p>
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<p>A wire with a perimeter of 100 inches is reshaped into a regular pentagon. Find the length of each side of the pentagon and divide the total length by 5.</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>20 inches</p>
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<p>20 inches</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>Given that the perimeter of a wire is reshaped into a regular pentagon, here is the solution:</p>
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<p>Given that the perimeter of a wire is reshaped into a regular pentagon, here is the solution:</p>
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<p>Perimeter of the wire = Total length of the wire</p>
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<p>Perimeter of the wire = Total length of the wire</p>
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<p>Length of the wire used = Perimeter of the pentagon formed</p>
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<p>Length of the wire used = Perimeter of the pentagon formed</p>
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<p>Perimeter of a regular pentagon = 5 × a 100 = 5 × a 100 ÷ 5 = 20 a = 20</p>
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<p>Perimeter of a regular pentagon = 5 × a 100 = 5 × a 100 ÷ 5 = 20 a = 20</p>
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<p>Therefore, the length of each side of the pentagon is 20 inches.</p>
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<p>Therefore, the length of each side of the pentagon is 20 inches.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 3</h3>
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<h3>Problem 3</h3>
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<p>Find the perimeter of a regular pentagon whose sides are 8 cm.</p>
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<p>Find the perimeter of a regular pentagon whose sides are 8 cm.</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>40 cm</p>
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<p>40 cm</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>Perimeter of pentagon = a + b + c + d + e P = 8 + 8 + 8 + 8 + 8 = 40</p>
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<p>Perimeter of pentagon = a + b + c + d + e P = 8 + 8 + 8 + 8 + 8 = 40</p>
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<p>Therefore, the perimeter of the pentagon is 40 cm.</p>
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<p>Therefore, the perimeter of the pentagon is 40 cm.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 4</h3>
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<h3>Problem 4</h3>
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<p>Emma is planning a pentagon-shaped flower bed in her backyard. She measures the five sides of the bed: Side A = 10 meters Side B = 8 meters Side C = 12 meters Side D = 9 meters Side E = 11 meters How much fencing should Emma buy to go around the edge of the flower bed?</p>
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<p>Emma is planning a pentagon-shaped flower bed in her backyard. She measures the five sides of the bed: Side A = 10 meters Side B = 8 meters Side C = 12 meters Side D = 9 meters Side E = 11 meters How much fencing should Emma buy to go around the edge of the flower bed?</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>Emma will need 50 meters of fencing to go around the flower bed.</p>
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<p>Emma will need 50 meters of fencing to go around the flower bed.</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>The perimeter of a pentagon is the sum of all the five sides.</p>
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<p>The perimeter of a pentagon is the sum of all the five sides.</p>
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<p>Using the formula: P = a + b + c + d + e P = 10 + 8 + 12 + 9 + 11 = 50 meters.</p>
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<p>Using the formula: P = a + b + c + d + e P = 10 + 8 + 12 + 9 + 11 = 50 meters.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h3>Problem 5</h3>
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<h3>Problem 5</h3>
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<p>Find the perimeter of an irregular pentagon with side lengths a = 14, b = 10, c = 9, d = 8, and e = 13 meters.</p>
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<p>Find the perimeter of an irregular pentagon with side lengths a = 14, b = 10, c = 9, d = 8, and e = 13 meters.</p>
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<p>Okay, lets begin</p>
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<p>Okay, lets begin</p>
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<p>Perimeter = a + b + c + d + e = 14 + 10 + 9 + 8 + 13 = 54 meters.</p>
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<p>Perimeter = a + b + c + d + e = 14 + 10 + 9 + 8 + 13 = 54 meters.</p>
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<h3>Explanation</h3>
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<h3>Explanation</h3>
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<p>Each side of the irregular pentagon has a different length.</p>
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<p>Each side of the irregular pentagon has a different length.</p>
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<p>The entire distance is calculated around the pentagon to be 54 meters by summing the lengths of the five sides.</p>
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<p>The entire distance is calculated around the pentagon to be 54 meters by summing the lengths of the five sides.</p>
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<p>Well explained 👍</p>
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<p>Well explained 👍</p>
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<h2>FAQs on Perimeter of Pentagon</h2>
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<h2>FAQs on Perimeter of Pentagon</h2>
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<h3>1.Evaluate the pentagon’s perimeter if its sides are 5 cm, 7 cm, 6 cm, 8 cm, and 9 cm.</h3>
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<h3>1.Evaluate the pentagon’s perimeter if its sides are 5 cm, 7 cm, 6 cm, 8 cm, and 9 cm.</h3>
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<p>Perimeter of pentagon = a + b + c + d + e, Hence P = 5 + 7 + 6 + 8 + 9 = 35 cm.</p>
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<p>Perimeter of pentagon = a + b + c + d + e, Hence P = 5 + 7 + 6 + 8 + 9 = 35 cm.</p>
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<h3>2.What is meant by a pentagon’s perimeter?</h3>
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<h3>2.What is meant by a pentagon’s perimeter?</h3>
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<p>The total length around a pentagon’s sides is its perimeter. In other words, the perimeter of a pentagon is the total length of its sides.</p>
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<p>The total length around a pentagon’s sides is its perimeter. In other words, the perimeter of a pentagon is the total length of its sides.</p>
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<h3>3.What are the types of pentagons?</h3>
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<h3>3.What are the types of pentagons?</h3>
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<p>There are two main types of pentagons: Regular pentagon, where all sides and angles are equal, and Irregular pentagon, where the sides and angles are<a>not equal</a>.</p>
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<p>There are two main types of pentagons: Regular pentagon, where all sides and angles are equal, and Irregular pentagon, where the sides and angles are<a>not equal</a>.</p>
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<h3>4.Which pentagon has no equal sides?</h3>
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<h3>4.Which pentagon has no equal sides?</h3>
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<p>An irregular pentagon is a pentagon with no equal sides. All five sides of the irregular pentagon are different.</p>
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<p>An irregular pentagon is a pentagon with no equal sides. All five sides of the irregular pentagon are different.</p>
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<h3>5.What is a regular pentagon?</h3>
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<h3>5.What is a regular pentagon?</h3>
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<p>A regular pentagon is a five-sided polygon where all sides and angles are equal.</p>
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<p>A regular pentagon is a five-sided polygon where all sides and angles are equal.</p>
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<h2>Important Glossaries for Perimeter of Pentagon</h2>
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<h2>Important Glossaries for Perimeter of Pentagon</h2>
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<ul><li><strong>Perimeter:</strong>The total length of the sides of a shape.</li>
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<ul><li><strong>Perimeter:</strong>The total length of the sides of a shape.</li>
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</ul><ul><li><strong>Pentagon:</strong>A polygon with five sides and five angles.</li>
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</ul><ul><li><strong>Pentagon:</strong>A polygon with five sides and five angles.</li>
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</ul><ul><li><strong>Regular Pentagon:</strong>A pentagon with all equal sides and angles.</li>
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</ul><ul><li><strong>Regular Pentagon:</strong>A pentagon with all equal sides and angles.</li>
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</ul><ul><li><strong>Irregular Pentagon:</strong>A pentagon with sides and angles of different lengths.</li>
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</ul><ul><li><strong>Irregular Pentagon:</strong>A pentagon with sides and angles of different lengths.</li>
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</ul><ul><li><strong>Formula of perimeter for a pentagon:</strong>The mathematical expression used to calculate the perimeter of a pentagon is 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒.</li>
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</ul><ul><li><strong>Formula of perimeter for a pentagon:</strong>The mathematical expression used to calculate the perimeter of a pentagon is 𝑷 = 𝑎 + 𝑏 + 𝑐 + 𝑑 + 𝑒.</li>
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</ul><p>What Is Measurement? 📏 | Easy Tricks, Units & 🎯 Fun Learning for Kids | ✨BrightCHAMPS Math</p>
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</ul><p>What Is Measurement? 📏 | Easy Tricks, Units & 🎯 Fun Learning for Kids | ✨BrightCHAMPS Math</p>
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<h2>Seyed Ali Fathima S</h2>
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<h2>Seyed Ali Fathima S</h2>
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<h3>About the Author</h3>
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<h3>About the Author</h3>
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<p>Seyed Ali Fathima S a math expert with nearly 5 years of experience as a math teacher. From an engineer to a math teacher, shows her passion for math and teaching. She is a calculator queen, who loves tables and she turns tables to puzzles and songs.</p>
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<p>Seyed Ali Fathima S a math expert with nearly 5 years of experience as a math teacher. From an engineer to a math teacher, shows her passion for math and teaching. She is a calculator queen, who loves tables and she turns tables to puzzles and songs.</p>
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<h3>Fun Fact</h3>
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<h3>Fun Fact</h3>
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<p>: She has songs for each table which helps her to remember the tables</p>
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<p>: She has songs for each table which helps her to remember the tables</p>