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Wednesday, November 30, 2011

Tuesday, November 29th

Problem
Find all the possible areas on an hexagon with equal angles and whose sides are 1,2,3,4,5, and 6 in some order.

Solution
Up to cyclic permutations and reflexions, the only possibilities for the sides are 1,6,2,4,3,5 and 1,6,3,2,5,4. Thus the possible values of areas are \frac{67\sqrt{3}}{4} and \frac{65\sqrt{3}}{4}.

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