Which regular polygons can be dissected into isosceles triangles by non-intersecting diagonals?
(In reply to Another n-gon
I did try a 9-gon, don't know why I dismissed it.
A do-decagon fails for the same reason as the hexagon, you have an interior equilateral.
Edited on January 21, 2012, 2:52 am
Posted by brianjn
on 2012-01-21 02:49:14