The *pentagon* is any polygon with 5 sides.

See also:

- Wikipedia,
*Pentagon* - Dragutin Svrtan, Darko Veljan, Vladimir Volenec,
*Geometry of pentagons: from Gauss to Robbins*, arXiv:math.MG/0403503

Last revised on May 5, 2021 at 19:22:56. See the history of this page for a list of all contributions to it.