STEP 2 - BISECT DIAMETER: Set your compass to the diameter of the circle. Put the compass spike at the bottom of the circle and draw an arc that touches the top of the circle and extends more than ...

WHAT YOU NEED: squared paper, a pen, a ruler and a compass. ...then repeat step 2: draw another square on top, turn anti-clockwise 90° and keep repeating with the squares getting bigger and bigger ...