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# What is the sum of interior angles of a heptagon?

900 degrees.

Explanation: The sum of the measures of the interior angles of a heptagon is 900°. A heptagon has 7 sides. So to calculate the sum of the measures of the interior angles in a heptagon, substitute 7 for n in (n − 2) • 180°. You get (7 − 2) • 180°, or 5 • 180°= 900°. Study guides

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## A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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900 degrees.

Explanation: The sum of the measures of the interior angles of a heptagon is 900°. A heptagon has 7 sides. So to calculate the sum of the measures of the interior angles in a heptagon, substitute 7 for n in (n − 2) • 180°. You get (7 − 2) • 180°, or 5 • 180°= 900°. The sum of the interior angles of any n-sided polygon is (2n - 4) right angles, ie 180n - 360 degrees. Where n = 7 this gives 1260 - 360 ie 900 degrees. The interior angles of a heptagon sum to 180*(7-2) = 900 degrees. The sum of the interior angles of a septagon, or heptagon as it is properly known, is 900 degrees. The 7 angles add up to 900 degrees 900 degrees. 900 900 degrees  Earn +20 pts  