TURBO MODE EXTREMELY IMPORTANT! AFTER (After!! AFTER!!!) the intro, put on turbo mode. Or else it will be terribly slow. This is Constructing Polygons. It's using a pair of compasses, a straight edge (not a ruler with measures!), and a pencil to make certain polygons.
Credit to soundbible.com for the sound. The rest of the coding done by me. /watch?v=LBgIWQcC6lM (youtube) for the video. The name is 'All the possible polygons!' showing most of the polygons you can construct with a pair of compasses and a straight edge. Some of them, however, are not possible with just a pair of compasses and a straight edge, such as 7 (septa/heptagon) or 9 (ennea/nonagon).
