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New page: A '''decagon''' is a polygon with ten sides and ten vertices. A regular decagon's angles are equal to 144°. ==See Also== *Polygon Category:Geometry
A '''decagon''' is a [[polygon]] with ten sides and ten [[vertices]]. A [[regular polygon|regular]] decagon's angles are equal to 144°.
==See Also==
*[[Polygon]]
[[Category:Geometry]]
==See Also==
*[[Polygon]]
[[Category:Geometry]]