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three triangles and a rectangle inside a circle

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Three Triangles and a Rectangle Inside a Circle

Posted on Mar 30, 2019

Three Triangles and a Rectangle Inside a Circle

Three equilateral triangles and a rectangle are stacked up inside this circle. What’s the angle?

Revised on May 9, 2021 20:55:55 by Andrew Stacey
Views: Print | TeX | Source | Linked from: Catriona Agg's puzzles, Catriona Agg's puzzles 2019, three triangles and a rectangle inside a circle techniques