Septagon vs. Heptagon: What’s the Difference?

  • Septagon

    In geometry, a heptagon is a seven-sided polygon or 7-gon.

    The heptagon is sometimes incorrectly referred to as the septagon, using “sept-” (an elision of septua-, a Latin-derived numerical prefix, rather than hepta-, a Greek-derived numerical prefix) together with the Greek suffix “-agon” meaning angle.

  • Heptagon

    In geometry, a heptagon is a seven-sided polygon or 7-gon.

    The heptagon is also occasionally referred to as the septagon, using “sept-” (an elision of septua-, a Latin-derived numerical prefix, rather than hepta-, a Greek-derived numerical prefix) together with the Greek suffix “-agon” meaning angle.

Wikipedia
  • Septagon (noun)

    A polygon with seven sides and seven angles.

  • Heptagon (noun)

    A polygon with seven sides and seven angles.

Wiktionary
  • Heptagon (noun)

    a plane figure with seven straight sides and angles.

Oxford Dictionary

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