I will post a challenging math problem each day. The level of difficulty will vary, but most problems should not require any specialized knowledge beyond calculus. Problems are also posted on Twitter using the hashtag #mathpotd.
Saturday, October 17, 2009
Equiangular hexagon
Let ABCDEF be an equiangular hexagon. If |AB|=3, |BC|=5, and |DE|=7, find |EF|.
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