1. The problem statement, all variables and given/known data I want to plot a Regular Polygon of many sides on a X-Y graph where I know the number of sides and the radius. I would like a method to calculate the position of the corners of this shape without using compass/ruler. If there was an algorithm that goes all the way around the shape then that'd be better. 2. Relevant equations x^2 + y^2 = r^2 http://en.wikipedia.org/wiki/Polygon" [Broken] 3. The attempt at a solution Im afraid Im completely stuck on this. I keep going from calculating all the angles and length of sides of each triangle segment of the polygon to a x-y graph where I am trying to calculate the x-y coordinates of the corners.