The Decagon reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Decagon

A decagon is a polygon with ten sides and ten angles. The decagon is the largest polygon that exists in the Archimedian solids. The measure of each angle of a decagon is 144 degrees.

See also geometry, pentagon, hexagon, octagon

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