Heptagon meaning

hĕp'tə-gŏn'
A polygon with seven sides and seven angles.
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A plane figure with seven angles and seven sides.
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A polygon having seven sides.
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(geometry) A polygon with seven sides and seven angles.
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Origin of heptagon

  • Latin heptagōnon from Greek heptagōnos having seven angles hepta- hepta- -gōnos angled –gon
    From American Heritage Dictionary of the English Language, 5th Edition
  • Since 16th century, from Ancient Greek ἑπτάγωνον (heptagonon), from ἑπτά (hepta, “seven”) + γωνία (gonia, “angle”).
    From Wiktionary