Which regular polygons can be dissected into isosceles triangles by non-intersecting diagonals?
(In reply to re(2): Not sure if this is what you want - A rewrite.
It seems if a regular n-gon will work, a regular 2n-gon will work.
Incidentally, it seems a nonagon would work also. If we label it ABCDEFGHI, connect A to C, C to E, E to G, G to I, I to E, and E to A. You have triangles ABC, CDE, EFG, GHI, IGE, ACE, and IAE.
I'm still trying to find a pattern.
Posted by Dustin
on 2012-01-21 02:43:21