deca·gon
| \ ˈde-kə-ˌgän
\
\
Definition of decagon
: a plane polygon of 10 angles and 10 sides
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“Decagon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decagon. Accessed 1 Mar. 2021.
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decagon
noun
deca·gon
| \ ˈde-kə-ˌgän
\
\
Kids Definition of decagon
: a closed figure having ten angles and ten sides
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Time Traveler for decagon
The first known use of decagon was circa 1639
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