Squaring the circle

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A circle and a square, with the same area.
A circle and a square, with the same area.

Squaring the cicle is a problem of geometry. The problem is to construct a square that has the same area as the unit circle, only by using a compass and straightedge construction method. Some people also call this problem the quadrature of the circle.

In 1882, Ferdinand von Lindenmann proved that this is impossible.

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