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four equilateral triangles round a square

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Four Equilateral Triangles Round a Square

Posted on Aug 30, 2018

Four Equilateral Trangles Round a Square

Four equilateral triangles are arranged around a square which has area 1212. What’s the total shaded area?

Revised on March 6, 2022 10:39:13 by Andrew Stacey
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