decagon

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noun deca·gon \ˈde-kə-ˌgän\

Definition of decagon

  1. :  a plane polygon of 10 angles and 10 sides

Illustration of decagon

Origin and Etymology of decagon

New Latin decagonum, from Greek dekagōnon, from deka- deca- + -gōnon -gon


First Known Use: circa 1639


DECAGON Defined for Kids

decagon

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noun deca·gon \ˈde-kə-ˌgän\

Definition of decagon for Students

  1. :  a closed figure having ten angles and ten sides

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