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.

• Septagon (noun)

  A polygon with seven sides and seven angles.

• Heptagon (noun)

  A polygon with seven sides and seven angles.

• Heptagon (noun)

  a plane figure with seven straight sides and angles.

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