Octadecagon
From Wikipedia, the free encyclopedia
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An octadecagon is a polygon with 18 sides and 18 vertexes. Each angle of a regular octadecagon mesures 160°. Another name for an octadecagon is "octakaidecagon". External links
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开放、中立，源自维基百科
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An octadecagon is a polygon with 18 sides and 18 vertexes. Each angle of a regular octadecagon mesures 160°. Another name for an octadecagon is "octakaidecagon". External links
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