How can you divide an angle into 3 equal angles? You may only use a straightedge and a compass to achieve this.

(This means : You have an angle A, you divide Angle A into 3 Angles B,C,D. And B=C=D=A/3)

Note: vohonam clarified that the problem actually only gives you a straightedge, not a ruler.

I've spent ages trying to do this, can't believe its impossible! Almost finished making my perpetual motion machine tho.

Posted by Percy on 2005-08-23 01:01:00