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Q: What is the angle sum of the interior of a regular heptagon?

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There is no regular polygon with an interior angle of 20o. If the interior angle is 120o then there are six sides and the sum of the angles is 720o.

180

180

For a regular octagon it is 1080

the sum of interior angles in a heptagon is = 900 For any 'n' sided figure , you can find out the sum of interior angles by a formula : (n-2) * 180 where n= no of sides

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900 degrees, and the heptagon does not need to be regular.

It's 900 degrees, and it doesn't matter whether the 7-sided polygon is regular or not.

A heptagon has 7 sides and 7 angles. The sum of the interior angles is 900°. If the heptagon is a regular heptagon, meaning all sides and angles are congruent, then the formula (180(n-2))/ n gives the individual interior angle measure. "n" is the number of sides in this case. In a regular heptagon, the interior angle measures 128 4/7 degrees.

The 7 interior angles of an heptagon add up to 900 degrees.

The 7 interior angles of a heptagon add up to 900 degrees

The sum of the interior angles of a n-gon is (n-2)*180 degrees. So the sum of the interior angles of a heptagon is (7-2)*180 degrees = 5*180 = 900 degrees.Since it is a regular polygon, each of its interior angles is the same and so each is 900/7 = 128.571428 degrees.

(7-2)*180 = 900 degrees

There is no regular polygon with an interior angle of 20o. If the interior angle is 120o then there are six sides and the sum of the angles is 720o.

The sum of the measures of the interior angles of a heptagon is 900 degrees.

If the heptagon is regular the angle measurement for three angles would be approximately 385.7

Interior Angle: 150 degrees (Interior Angle Sum: 1800) Exterior Angle: 30 degrees (Exterior Angle Sum: 360)

The exterior angle sum is 360 degrees. It doesn't matter whether the polygon is regular or not, and it doesn't even matter how many sides it has.

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