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WT66: Squares in a pentagon

We use rational trigonometry to solve a problem concerning a pentagon with inscribed touching squares---the question being to find the ratio of the sides of the pentagon to the squares, and also the ratios of two circles, one circumscribing the pentagon, the other inscribed in the squares. The Golden spreads of WildTrig 25 play a key role, as they do for many problems with five fold symmetry. This video is part of the WildTrig series, which introduces Rational Trigonometry and applies it to many different aspects of geometry.
Length: 09:39


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