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Q: What is the interior angle sum of n-gon?

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For interior, the angle sum is 540 degrees, for exterior, the angle sum is 1260 degrees. * * * * * Partially correct! The sum of the exterior angles of any polygon is 360 degrees. The exterior angle is the supplement of the interior angle (180 - interior), NOT the reflex angle (360- interior). So the sum given 1260, which is based on the reflex angles is incorrect.

No. An interior angle is one of many angles in the interior of a closed shape - usually a polygon. The angle sum is the sum of the values of a specified list of angles. They may be angles around a point, angles in one or more shapes.

360

An interior angle is the inside angle of a shape e.g quadrilateral, square

The sum of an interior angles of a triangle is 180 degrees.

If you mean a regular 9 sided nonagon Total interior angles are (9-2)*180 = 1260 degrees Each interior angle is 1260/9 = 140 degrees

the Sum of the Interior of a triangle is 180

(number of sides - 2)*180 = sum of interior angles

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 is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.

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

(number of sides -2)*180 = sum of interior angles

No. It is equal to the sum of the opposite interior angles.

Each interior angle is 120o making the total 720o.

A parallelogram has four sides. All four sided figures have a sum of the interior angle measures equal to 360°.

360 degrees

The sum of the interior angles of a quadrilateral are 360 degrees

The sum of an interior angle is any value between 0 and 360 degrees that you like - with the possible exception of 180 degrees that doe not make an angle. The sum of all interior angles is 180*(34-2) = 5760 degrees.

900

360

Anything you like. Any single interior angle of a polygon is indeterminate - the only constraint is on the sum of all the interior angles.

It will have 14 sides and each interior angle will measure 2160/14 degrees

sum of interior angles= 180(n-2) "n" being the number of sides the polygon has

The sum of the interior angles of a polygon with n sides is 180*(n-2) degrees.

The sum of the 4 interior angles of any quadrilateral add up to 360 degrees.