*see heptagon post above*
I have a theory for how do geometrically construct a heptagon, but I can't seem to prove that it's correct. I have 6 pages of scribbled trig and algebra, and so far all I've managed to do is derive 3 trigonometric identities. ARG! How frustrating.
I had one equation that looked really promising- it was all in terms of alpha, which I'm trying to prove is equal to pi/7, but it simplified all the way down to
sin^2(alpha) +cos^2(alpha)=1. DAMMIT.
e: wtf, bbcode doesn't support subscript and superscript? >: (
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