Tukic

<!DOCTYPE html>
<html>
<body>

<canvas id="myCanvas" width="1400" height="900">
Your browser does not support the HTML5 canvas tag.</canvas>

<script>

var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");

ctx.beginPath();
ctx.lineWidth="1";
ctx.strokeStyle="black";
ctx.rect(350,150,250,250);
ctx.stroke();

</script>

<script>

var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");

ctx.beginPath();
ctx.lineWidth="1";
ctx.strokeStyle="black";
ctx.rect(400,200,150,150);
ctx.stroke();
</script>

<script>

var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");

ctx.beginPath();
ctx.lineWidth="1";
ctx.strokeStyle="black";
ctx.rotate(45*Math.PI/180);
ctx.rect(450,- 215,150,150);
ctx.stroke();

</script>

<script>

var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");

ctx.beginPath();
ctx.lineWidth="1";
ctx.strokeStyle="black";

ctx.rect(405,- 270,250,250);
ctx.stroke();
</script>

</body>
</html>