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Unformatted text preview: for the definitions of the variables r , y , z . From the diagram of the problem one immediately sees that y + z = 1 2r + z = y (r + z) 2 + (3r + z) 2 = 1 The three equations in the three unknown are easy to solve and give the answer of r = (1+3^(1/2))/2...
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 Spring '10
 AlbertoDelgado
 Geometry, Combinatorics, Ray Kremer, Yan Fridman, Steven Noto

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