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2011 USAMO Problems/Problem 3

Revision as of 16:46, 15 May 2011 by Danielguo94 (talk | contribs) (Created page with 'In hexagon , which is nonconvex but not self-intersecting, no pair of opposite sides are parallel. The internal angles satisfy , , and . Furthermore , , and . Prove that diagonal…')
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In hexagon , which is nonconvex but not self-intersecting, no pair of opposite sides are parallel. The internal angles satisfy , , and . Furthermore , , and . Prove that diagonals , , and are concurrent.

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