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 half way down each side... Image caption, ...then keeping the compass ...

and draw circles. The Greek mathematician, Euclid, limited the constructions in his Elements of Geometry to those that could be done with an unmarked straight edge and rudimentary compass. Ancient ...

Alternative to a compass: Tie a piece of string to 2 pens or pencils. Use one pen as an anchor and the other pen to trace the shape of a circle.

Circles are difficult to create. Whether you draw them by hand or try to achieve ... you put at the other end of it, sort of like a compass. A pencil, a jigsaw, a router can all work well to ...