<![CDATA[
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>다각형 그리기</title>
</head>
<body>
<canvas id="myCanvas" width="700" height="500"
style="border: 2px solid #cef"> </canvas>
<script>
const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
function drawPolygon(px, py, length, sides) {
ctx.beginPath();
for (let i = 0; i < sides; i++) {
ctx.lineTo(px, py);
let angle = (i * 2 * Math.PI) / sides;
px = px + length * Math.cos(angle);
py = py + length * Math.sin(angle);
}
ctx.closePath();
ctx.stroke();
}
function draw() {
for (let k = 3; k <= 12; k++)
drawPolygon(300, 10, 120, k);
}
draw();
</script>
</body>
</html>
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