{"id":8303,"date":"2022-11-06T23:00:00","date_gmt":"2022-11-06T17:30:00","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=8303"},"modified":"2022-11-06T13:27:56","modified_gmt":"2022-11-06T07:57:56","slug":"python-program-to-find-area-of-circle","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/python-program-to-find-area-of-circle\/","title":{"rendered":"Python Program to Find Area of Circle"},"content":{"rendered":"\n<p>In this post, we will learn how to find the area of a circle using the Python Programming language.<\/p>\n\n\n\n<p>As we know, the area of a circle is <strong>\u03c0r<sup>2<\/sup><\/strong>, where <strong>r<\/strong> is the radius of the circle and <strong>\u03c0 = 22\/7 or 3.14<\/strong>.\u00a0<\/p>\n\n\n\n<p>Since <strong>\u03c0<\/strong> is a constant, we need to take only the radius value as input.<\/p>\n\n\n\n<p>We can import the value of <strong>\u03c0<\/strong> using a math module or assign the value of <strong>\u03c0<\/strong> to a separate constant variable.<\/p>\n\n\n\n<p>This tutorial takes the radius of the circle from the user and calculates the area of the circle using the following approaches:<\/p>\n\n\n\n<ol>\n<li>Using Constant \u03c0<\/li>\n\n\n\n<li>Using math\u00a0Module<\/li>\n<\/ol>\n\n\n\n<p>So, without further ado, let\u2019s begin this tutorial.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-662be8827aae6\" class=\"ez-toc-cssicon-toggle-label\"><label class=\"ez-toc-title\">Table of Contents<\/label>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0090ff;color:#0090ff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0090ff;color:#0090ff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-662be8827aae6\" checked \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.codingbroz.com\/python-program-to-find-area-of-circle\/#Python_Program_to_Find_Area_of_Circle_Using_Constant_%CF%80\" title=\"Python Program to Find Area of Circle Using Constant \u03c0\">Python Program to Find Area of Circle Using Constant \u03c0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.codingbroz.com\/python-program-to-find-area-of-circle\/#How_Does_This_Program_Work\" title=\"How Does This Program Work?\">How Does This Program Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.codingbroz.com\/python-program-to-find-area-of-circle\/#Python_Program_to_Find_Area_of_Circle_Using_math_Module\" title=\"Python Program to Find Area of Circle Using math Module\">Python Program to Find Area of Circle Using math Module<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.codingbroz.com\/python-program-to-find-area-of-circle\/#Summary\" title=\"Summary\">Summary<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Python_Program_to_Find_Area_of_Circle_Using_Constant_%CF%80\"><\/span><strong>Python Program to Find Area of Circle Using Constant \u03c0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Python Program to Find Area of Circle Using Constant \u03c0\n\nPI = 3.14\nr = float(input(\"Enter the radius of the circle: \"))\narea = PI * r * r\n\nprint(\"Area of the circle = %.2f\" %area)\n\n<\/pre>\n\n\n\n<p><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Enter the radius of the circle: 14\r\nArea of the circle = 615.44\r<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_This_Program_Work\"><\/span><strong>How Does This Program Work?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol>\n<li>In this program, we store the value of <strong>\u03c0<\/strong> in the <strong>PI<\/strong> named constant variable.<\/li>\n\n\n\n<li>Now, the user is asked to enter the radius of the circle. It is stored in the <strong>r<\/strong> named variable.<\/li>\n\n\n\n<li>The area of the circle is calculated using the formula <strong>\u03c0r<sup>2<\/sup><\/strong>. The area of the circle is stored in the <strong>area<\/strong> named variable.<\/li>\n\n\n\n<li>The calculated area of the circle is printed up to <strong>2<\/strong> decimal places with the help of <strong>%.2f<\/strong> format specifier.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Python_Program_to_Find_Area_of_Circle_Using_math_Module\"><\/span><strong>Python Program to Find Area of Circle Using math Module<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In the above program, we have stored the value of <strong>\u03c0<\/strong> in a separate variable. To get more precise and accurate results, we will use the <strong>math<\/strong> module.<\/p>\n\n\n\n<p>Python has a built-in module called <strong>math<\/strong> that provides access to different mathematical constants and functions. It also contains the value of <strong>\u03c0<\/strong>.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Python Program to Find Area of Circle Using math Module \nimport math\n\nr = float(input(\"Enter the radius of a circle: \"))\narea = math.pi * r * r\n\nprint(\"Area of the circle = %.2f\" %area)\n<\/pre>\n\n\n\n<p><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Enter the radius of a circle: 7\r\nArea of the circle = 153.94\r<\/code><\/pre>\n\n\n\n<p>To use the value of <strong>\u03c0<\/strong>, use <strong>math.pi<\/strong> in the program.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Summary\"><\/span><strong>Summary<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>After going through this post, I hope you understand how to find the area of a circle using the Python Programming language.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this post, we will learn how to find the area of a circle using the Python Programming language.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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