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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Draw Circle on Canvas Using arc</title> </head> <body> <canvas id="demoCanvas" width="300" height="200" style="border: 2px solid #000">Sorry, Your browser doesn't support Canvas tag!</canvas> <script> window.onload = function() { var cnvs = document.getElementById("demoCanvas"); var ctx = cnvs.getContext("2d"); /* syntax: context.arc(centerX, centerY, radius, 0, 2 * Math.PI, false); */ ctx.arc(150, 100, 70, 0, 2 * Math.PI, false); ctx.stroke(); }; </script> </body> </html>