Rush order from Muffin: he needs a surprised smiley vector graphic for his Mufftagram app so that users can react to the most fur-raising images. Of course, Muffin downloaded a bunch of emojis, but none of their expressions conveyed the desired level of surprise. So why do we need vector graphics? For retina resolution screens!
Using circles and ellipses, draw a surprised smiley.
Colors: lightgray, gold, white, black, crimson.
All of the values are multiples of five.
<!DOCTYPE html><html lang="en" class="no-js"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><script>var b=document.documentElement.classList;b.remove('no-js');if(!window.Promise||!window.sessionStorage||!!sessionStorage.getItem('muller.v2')){b.add('muller')}</script><link rel="dns-prefetch" href="https://assets.htmlacademy.org"><script async src="https://www.googletagmanager.com/gtag/js?id=G-MXPCRXM48C"></script><script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-MXPCRXM48C');
</script><script type="text/javascript">
(function(e,t){var n=e.amplitude||{_q:[],_iq:{}};var r=t.createElement("script")
;r.type="text/javascript"
;r.integrity="sha384-d/yhnowERvm+7eCU79T/bYjOiMmq4F11ElWYLmt0ktvYEVgqLDazh4+gW9CKMpYW"
;r.crossOrigin="anonymous";r.async=true
;r.src="https://cdn.amplitude.com/libs/amplitude-5.2.2-min.gz.js"
;r.onload=function(){if(!e.amplitude.runQueuedFunctions){
console.log("[Amplitude] Error: could not load SDK")}}
;var i=t.getElementsByTagName("script")[0];i.parentNode.insertBefore(r,i)
;function s(e,t){e.prototype[t]=function(){
this._q.push([t].concat(Array.prototype.slice.call(arguments,0)));return this}}
var o=function(){this._q=[];return this}
;var a=["add","append","clearAll","prepend","set","setOnce","unset"]
;for(var u=0;u<a.length;u++){s(o,a[u])}n.Identify=o;var c=function(){this._q=[]
;return this}
;var l=["setProductId","setQuantity","setPrice","setRevenueType","setEventProperties"]
;for(var p=0;p<l.length;p++){s(c,l[p])}n.Revenue=c
;var d=["init","logEvent","logRevenue","setUserId","setUserProperties","setOptOut","setVersionName","setDomain","setDeviceId","setGlobalUserProperties","identify","clearUserProperties","setGroup","logRevenueV2","regenerateDeviceId","groupIdentify","onInit","logEventWithTimestamp","logEventWithGroups","setSessionId","resetSessionId"]
;function v(e){function t(t){e[t]=function(){
e._q.push([t].concat(Array.prototype.slice.call(arguments,0)))}}
for(var n=0;n<d.length;n++){t(d[n])}}v(n);n.getInstance=function(e){
e=(!e||e.length===0?"$default_instance":e).toLowerCase()
;if(!n._iq.hasOwnProperty(e)){n._iq[e]={_q:[]};v(n._iq[e])}return n._iq[e]}
;e.amplitude=n})(window,document);
amplitude.getInstance().init("df11525b6880a3c5e2af14f9b6238408", null,{
includeUtm: true,
includeGclid: true,
includeReferrer: true,
deviceIdFromUrlParam: true
}, function (instance) {
window.amplitudeLoaded = true;
});
</script><link rel="stylesheet" href="https://assets.htmlacademy.org/css/core.v284.css"><link rel="stylesheet" href="https://assets.htmlacademy.org/css/text.v104.css"><link rel="stylesheet" href="https://assets.htmlacademy.org/css/course-paywall.v6.css"><link rel="stylesheet" href="https://assets.htmlacademy.org/css/course-interface-light.v20.css"><link rel="stylesheet" href="https://assets.htmlacademy.org/css/course-interface-ru.v2.css"><link rel="stylesheet" href="/css/custom.css"><link rel="stylesheet" href="/css/cookies.css"><link rel="preload" as="script" href="https://assets.htmlacademy.org/js/general.v274.js"><title>Challenge: Surprised Smiley — An Introduction to SVG — HTML Academy</title><meta name="csrf-token" content=""><meta property="og:type" content="website"><meta property="og:site_name" content="HTML Academy"><meta name="twitter:url" property="og:url" content="https://htmlacademy.org"><meta name="twitter:title" property="og:title" content="Interactive online courses HTML Academy"><meta name="twitter:description" property="og:description" content="Together we’ll learn how to work with real code, solve true-to-life problems, use cutting edge technologies. Minimum of boring theory and lots of practical tasks."><meta name="twitter:image" property="og:image" content="https://htmlacademy.org/og/htmlacademy.png"><meta name="twitter:card" content="summary_large_image"><link rel="canonical" href="https://htmlacademy.org/courses/svg-basics/svg-intro/challenge-4"><meta name="theme-color" content="#2f358f"></head><body class="course-interface course-interface--light" data-base="/assets/courses/35/"><header class="page-header page-header--course"><div class="page-header__inner"><div class="page-header__top"><a class="page-header__logo" href="/" aria-label="HTML Academy Home"><img src="https://assets.htmlacademy.org/img/logo--small.svg?cs=1218aec0be4a5f23db79ad29a14e30f7f9fb9a25" width="24" height="36" alt="HTML Academy"></a><nav class="main-nav main-nav--mini" role="navigation"><div class="main-nav__course-nav"><a class="main-nav__course-item main-nav__course-button main-nav__course-button--prev" href="/courses/svg-basics/svg-intro/draw-ellipse">Drawing an Ellipse</a><div class="main-nav__course-item main-nav__course-list main-nav__course-list--collapsed"><b class="main-nav__course-title">An Introduction to SVG</b><span class="main-nav__course-stat">11/15</span><div class="main-nav__course-contents"><a class="main-nav__course-contents-link" href="/courses/svg-basics/svg-intro">Back to the list of tasks</a><ul class="main-nav__course-contents-list"><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/hello-svg">1. Hello, SVG!</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/draw-rectangle">2. Drawing a Rectangle</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/rectangle-coordinates">3. Rectangle Coordinates</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/round-corner">4. Corner Rounding</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/challenge-1">5. Challenge: Fixing the TV</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/polygons">6. Polygons</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/challenge-2">7. Challenge: Pyramids</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/draw-circle">8. Drawing a Circle</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/challenge-3">9. Challenge: Target</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/draw-ellipse">10. Drawing an Ellipse</a></li><li class="main-nav__course-contents-item main-nav__course-contents-item--current"><a href="/courses/svg-basics/svg-intro/challenge-4">11. Challenge: Surprised Smiley</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/draw-lines">12. Drawing Lines</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/challenge-5">13. Challenge: Arithmetic Operators</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/draw-polylines">14. Drawing Polylines</a></li><li class="main-nav__course-contents-item"><a href="/courses/svg-basics/svg-intro/challenge-6">15. Challenge: Hot-Air Balloons</a></li></ul></div></div><a class="main-nav__course-item main-nav__course-button main-nav__course-button--next" href="/courses/svg-basics/svg-intro/draw-lines">Drawing Lines</a></div><ul class="main-nav__list main-nav__list--user main-nav__list--user-guest"><li class="main-nav__item" itemprop="name"><a class="main-nav__link" href="/signup?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" title="Sign up" data-modal="open" data-value="register" itemprop="url"><span class="main-nav__icon" aria-hidden="true"><svg aria-hidden="true"><use xlink:href="/img/sprites/general.svg#user"></use></svg></span>Sign up</a></li><li class="main-nav__item main-nav__item--login" itemprop="name"><a class="main-nav__link" href="/login?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" title="Log in" data-modal="open" data-value="login" itemprop="url"><span class="main-nav__icon" aria-hidden="true"><svg aria-hidden="true"><use xlink:href="/img/sprites/general.svg#login"></use></svg></span>Log in</a></li></ul></nav></div></div></header><main class="course-container course-interface__content js-course"><div class="course-container__inner"><article class="course-layout"><div class="course-layout__sidebar course-theory"><div class="course-theory__inner course-theory__inner--left-stub"><button class="course-theory__close icon-close icon-close--light" type="button" title="Close">Close</button><ul class="course-tabs course-tabs--non-interactive course-layout__theory-heading"><li class="course-tabs__item course-tabs__item--external course-tab course-tab--centered"><span class="course-tab__icon"><svg aria-hidden="true"><use xlink:href="courses#icon-theory"></use></svg></span><span class="course-tab__title">Theory</span></li><li class="course-tabs__item course-tabs__item--internal course-tab course-tab--centered course-tab--active"><span class="course-tab__icon"><svg aria-hidden="true"><use xlink:href="courses#icon-theory"></use></svg></span><span class="course-tab__title">Theory</span></li></ul><section class="course-theory__content"><div class="course-theory__content-inner"><h1 class="course-theory__content-heading">Challenge: Surprised Smiley</h1><div class="course-theory__content-text"><p>Rush order from Muffin: he needs a surprised smiley vector graphic for his Mufftagram app so that users can react to the most fur-raising images. Of course, Muffin downloaded a bunch of emojis, but none of their expressions conveyed the desired level of surprise. So why do we need vector graphics? For retina resolution screens!</p><p>Using circles and ellipses, draw a surprised smiley.</p><p><b>Colors:</b> <code style="background-color: lightgray; border-color: lightgray; color: #333333;">lightgray</code>, <code style="background-color: gold; border-color: gold; color: #333333;">gold</code>, <code style="background-color: white; color: #333;">white</code>, <code style="background-color: black; border-color: black; color: #ffffff;">black</code>, <code style="background-color: crimson; border-color: crimson; color: #ffffff;">crimson</code>.</p><p>All of the values are multiples of five.</p></div></div></section><div class="course-theory__controls"><button class="button button--close" type="button">To the task</button></div></div></div><div class="course-layout__column"><ul class="course-tabs course-layout__course-tabs"><li class="course-tabs__item course-tabs__item--limited course-tabs__item--limited-large course-tab"><span class="course-tab__title">index.html</span></li></ul><div class="course-layout__editors"><div class="course-editor course-layout__editor"><span class="course-editor__label"><span class="course-editor__label-item">HTML</span></span><div class="course-editor__item" id="html"></div></div></div></div><div class="course-layout__column"><span class="course-separator-control"><svg aria-hidden="true"><use xlink:href="courses#icon-arrows-separator"></use></svg></span><div class="course-browser"><div class="course-browser__menu"><span class="course-browser__menu-item course-browser__address"><span class="course-browser__menu-item-inner">HTML</span></span><button class="js--autorun course-browser__menu-item course-browser__menu-button course-browser__menu-button--text-with-icon course-browser__menu-button--autorun course-browser__menu-button--autorun-on" title="Autorun" type="button"><span class="course-browser__menu-item-inner"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-autorun"></use></svg>
Autorun
</span></button><button class="course-browser__menu-item course-browser__menu-button course-browser__menu-button--expand" type="button"><svg xmlns="http://www.w3.org/2000/svg" width="11" height="11" viewBox="0 0 11 11"><path d="M1.375 5.125v4.5h4.5m3.75-3.75v-4.5h-4.5" fill="none" fill-rule="evenodd" stroke="currentColor"></path></svg></button></div><div class="course-browser__content"><div class="course-browser__modal js--browser-modal"><div class="course-browser__notification course-browser__modal-heading js--browser-modal-heading"><p class="course-browser__notification-text">You’ve gone to a different page</p><button class="course-browser__notification-button js--close" type="button">← Go back</button></div><div class="course-browser__zoomer"><iframe class="js--preview-document course-browser__content course-browser__zoomer-element"></iframe><p class="course-browser__focus-message">
Click inside the mini-browser to shift the focus onto this window.
</p></div></div><div class="course-browser__menu course-browser__menu--vertical"><button class="course-browser__menu-item course-browser__menu-button course-browser__menu-button--increase" type="button" disabled title="Larger"><span class="course-browser__menu-item-inner">Larger</span></button><span class="course-browser__menu-item course-browser__zoom"><span class="course-browser__menu-item-inner">100%</span></span><button class="course-browser__menu-item course-browser__menu-button course-browser__menu-button--decrease" type="button" title="Smaller"><span class="course-browser__menu-item-inner">Smaller</span></button></div><div class="js--validation-view course-browser__results-restriction course-browser__results-restriction--mini"><span class="tooltip tooltip--light tooltip--short course-browser__results-restriction-tooltip"><span class="js--tooltip-text"></span><button class="js--validation-view-close course-browser__results-restriction-tooltip-close icon-close" type="button">Закрыть</button></span></div></div></div></div></article></div><div class="course-interface__overlay course-interface__overlay--active"></div></main><main class="js-subscription hidden"><div class="page-content"><div class="page-content__inner"><div class="service-layout-wrapper"><section class="service"><nav class="breadcrumbs" itemscope itemtype="http://schema.org/SiteNavigationElement"><ul class="breadcrumbs__list"><li class="breadcrumbs__item" itemprop="name"><a href="/" itemprop="url">Home</a></li><li class="breadcrumbs__item" itemprop="name"><a href="/courses" itemprop="url">Interactive courses</a></li><li class="breadcrumbs__item" itemprop="name"><a href="/courses/svg-basics" itemprop="url">SVG basics</a></li><li class="breadcrumbs__item" itemprop="name"><a href="/courses/svg-basics/svg-intro" itemprop="url">An Introduction to SVG</a></li></ul></nav><div class="service__inner"><div class="service__image"><img src="/static/img/cashier.svg" width="227" height="250" alt="Granny Muffin"></div><div class="service__content"><h1 class="service__title">Easy there, pal!</h1><p class="service__info">To access the <a href="/courses/svg-basics/svg-intro">An Introduction to SVG</a> challenges in the <a href="/courses/svg-basics">SVG basics</a>, you need to sign up and subscribe first.</p><div class="service__buttons"><a class="button button--wide" href="/signup?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" title="Sign up" data-modal="open" data-value="register" itemprop="url">Sign up</a></div></div></div></section></div></div></div></main><footer class="page-footer page-footer--tiny"><div class="page-footer__inner"><p><a href="/docs/cookies">Cookies</a> ∙
<a href="/docs/privacy">Privacy</a> ∙
<a href="/docs/agreement">License Agreement</a> ∙
<a href="/docs/about">About</a> ∙
<a href="/contacts">Contacts</a> ∙
© HTML Academy OÜ, 2019−2026
</p><div class="page-footer__financial"><img src="https://assets.htmlacademy.org/img/visa-white.svg?cs=96e54ec8c587db9d4b1d8d328ffd87c2ebfd9555" alt="VISA" title="VISA" width="35" height="35"><img src="https://assets.htmlacademy.org/img/mastercard-horizontal.v2.svg" alt="Mastercard" title="Mastercard" width="35" height="35"></div></div></footer><div class="modal"><div class="modal__inner"><div class="modal__wrapper js-login hidden"><button class="modal__close icon-close" type="button" title="Close" data-modal="close"></button><h4 class="modal__header">Log in</h4><ul class="modal__social"><li class="modal__social-link modal__social-link--fb"><a href="/login/fb?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" rel="nofollow" title="Log in via Facebook"><svg aria-hidden="true"><use xlink:href="/img/sprites/general.svg#facebook"></use></svg></a></li><li class="modal__social-link modal__social-link--google"><a href="/login/google?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" rel="nofollow" title="Log in via Google"><svg height="30" width="30" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><path fill="#ffffff" d="M457.732 216.625c2.628 14.041 4.063 28.743 4.063 44.098C461.796 380.688 381.481 466 260.204 466c-116.023 0-210-93.977-210-210s93.977-210 210-210c56.704 0 104.077 20.867 140.44 54.73l-59.204 59.197v-.135c-22.046-21.002-50-31.762-81.236-31.762-69.297 0-125.604 58.537-125.604 127.841 0 69.29 56.306 127.968 125.604 127.968 62.87 0 105.653-35.965 114.46-85.312h-114.46v-81.902h197.528z"/></svg></a></li></ul><div class="modal__or"><span>or</span></div><form class="modal__form form" action="/login?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" autocomplete="off" method="post" data-submit="o"><input type="hidden" name="csrf_name" value="csrf69aea80d33f14"><input type="hidden" name="csrf_value" value="62c02847dcb442e7d85fbbe3e7252b4d"><div class="form__group"><label class="sr-only" for="login-email">Email</label><input class="field field--text field--full-width" type="email" name="email" placeholder="Email" value="" id="login-email"></div><div class="form__group"><label class="sr-only" for="login-password">Password</label><input class="field field--text field--full-width ym-disable-keys" type="password" name="password" placeholder="Password" id="login-password"></div><input class="button button--full-width" type="submit" data-submit-text="Logging in…" value="Log in"></form><p class="modal__forgot-password"><a href="/recover" data-modal="open" data-value="recover">Forgot your password?</a></p><a class="modal__bottom-link" href="/signup" data-modal="open" data-value="register">Sign up</a></div><div class="modal__wrapper js-register hidden"><button class="modal__close icon-close" type="button" title="Close" data-modal="close"></button><h4 class="modal__header">Sign up</h4><ul class="modal__social"><li class="modal__social-link modal__social-link--fb"><a href="/login/fb?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" rel="nofollow" title="Log in via Facebook"><svg aria-hidden="true"><use xlink:href="/img/sprites/general.svg#facebook"></use></svg></a></li><li class="modal__social-link modal__social-link--google"><a href="/login/google?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" rel="nofollow" title="Log in via Google"><svg height="30" width="30" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><path fill="#ffffff" d="M457.732 216.625c2.628 14.041 4.063 28.743 4.063 44.098C461.796 380.688 381.481 466 260.204 466c-116.023 0-210-93.977-210-210s93.977-210 210-210c56.704 0 104.077 20.867 140.44 54.73l-59.204 59.197v-.135c-22.046-21.002-50-31.762-81.236-31.762-69.297 0-125.604 58.537-125.604 127.841 0 69.29 56.306 127.968 125.604 127.968 62.87 0 105.653-35.965 114.46-85.312h-114.46v-81.902h197.528z"/></svg></a></li></ul><div class="modal__or"><span>or</span></div><form class="modal__form form" action="/signup?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" autocomplete="off" method="post"><input type="hidden" name="csrf_name" value="csrf69aea80d33f14"><input type="hidden" name="csrf_value" value="62c02847dcb442e7d85fbbe3e7252b4d"><div class="form__group"><label class="sr-only" for="email">
Email
<span class="required"><span class="sr-only">Required field</span><span class="required__star">*</span></span></label><div class="form__group-fields"><input class="field field--text field--full-width" type="email" name="email" value="" id="email" required placeholder="Email"></div></div><div class="form__group"><label class="sr-only" for="password">
Password
<span class="required"><span class="sr-only">Required field</span><span class="required__star">*</span></span></label><div class="form__group-fields"><input class="field field--text field--full-width" type="password" name="password" value="" id="password" required placeholder="Password"></div></div><div class="form__group"><label class="checkbox"><input class="checkbox__input" type="checkbox" name="agreement" value="1" required><span class="checkbox__text"><span>By signing up, you agree to our <a href="/docs/agreement" target="_blank">License Agreement</a> and <a href="/docs/privacy" target="_blank">Privacy Policy</a>.</span></span></label></div><input class="button button--full-width" type="submit" data-submit-text="Signing up…" value="Sign up"></form><a class="modal__bottom-link" href="/login?redirect_url=%2Fcourses%2Fsvg-basics%2Fsvg-intro%2Fchallenge-4" data-modal="open" data-value="login">Log in</a></div><div class="modal__wrapper modal__wrapper--no-btn-bottom js-recover hidden"><button class="modal__close icon-close" type="button" title="Close" data-modal="close"></button><h4 class="modal__header">Restore access</h4><p class="modal__text-accent">Have you forgotten your password or lost access to your profile? Enter your email connected to your profile and we will send you a link to restore access.</p><form class="modal__form form" action="/recover" autocomplete="off" method="post" data-submit="o"><input type="hidden" name="csrf_name" value="csrf69aea80d33f14"><input type="hidden" name="csrf_value" value="62c02847dcb442e7d85fbbe3e7252b4d"><div class="form__group"><label class="sr-only" for="recovery-email">Email</label><input class="field field--text field--full-width" type="email" name="email" placeholder="Email" value="" id="recovery-email"></div><script src='https://www.google.com/recaptcha/api.js'></script><div class="form__group"><div class="g-recaptcha" data-sitekey="6LetCTEqAAAAANROWtPzfC7Rfg9iIRiRt2k2FPn7"></div></div><input class="button button--full-width" type="submit" data-submit-text="Sending…" value="Send"></form><p class="modal__text">Forgot to connect your email to the profile? Email us and we’ll help.</p></div></div></div><script async src="https://assets.htmlacademy.org/js/general.v274.js" data-assets="https://assets.htmlacademy.org" data-require="toggle,navigation-courses,modal,form,nav"></script><script src="https://assets.htmlacademy.org/js/courses-paywall.v11.js"></script></body></html>