DavidB4-bot
→See also: clean up & uniformity
11:30
Foxtrot
subcat
01:37
+6
WilliamH
no edit summary
22:18
+7
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
22:12
+186