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Isosceles from Regular (Posted on 2012-01-20) Difficulty: 3 of 5
Which regular polygons can be dissected into isosceles triangles by non-intersecting diagonals?

See The Solution Submitted by Jer    
Rating: 5.0000 (1 votes)

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Another n-gon | Comment 4 of 13 |
(In reply to re(2): Not sure if this is what you want - A rewrite. by brianjn)

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
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