Wolfram Demonstrations Project

The area of the red circumscribed polygon is displayed at the top of the diagram. The area of the blue inscribed polygon is displayed at the bottom.

A unit circle is displayed. A regular polygon of

sides is inscribed. Another regular polygon of

sides is circumscribed. The area of the inscribed polygon is displayed, as is the area of the circumscribed polygon.

Contributed by: John Tucker

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Archimedes' Approximation of Pi