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出典:Wiktionary
出典:『Wiktionary』 (2025/08/03 13:42 UTC 版)
From hendeca- + -gon.
hendecagon (plural hendecagons)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/29 00:12 UTC 版)
In geometry, a hendecagon (also undecagon) is an 11-sided polygon. (The name hendecagon, from Greek hendeka 'eleven' and gon– 'corner', is often preferred to the hybrid undecagon, whose first syllable un– is Latin for 'one'.)
hendecagon