Dodecagon
Revision as of 15:53, 18 June 2013 by Mwhockey99 (talk | contribs)
A dodecagon is a 12-sided polygon. The sum of its internal angles is . The area of a regular dodecagon can be calculated by the formula , where is the circumradius of the dodecagon.
See Also
This article is a stub. Help us out by expanding it.