Reuleaux triangle
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A Reuleaux triangle is a curved triangle with constant width, the simplest and best known curve of constant width other than the circle. It is formed from the intersection of three equally sized circu
Comparison of a cylindrical and Reuleaux triangle roller
Reuleaux triangle shaped window of the Church of Our Lady, Bruges in Belgium
Reuleaux triangle shaped guitar picks
The Submillimeter Array, with seven of its eight antennae arranged on an approximate Reuleaux triangle