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All polygons have an interior angle sum of 180(n-2) degrees where n is the number of sides.

180(9-2)=180*7=1260 degrees

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Q: Sum of interior angles of a polygon with 9 sides?
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A convex polygon has 6 sides what is the sum of the measure of its interior angles?

a convex polygon has 6 sides . What is the sum of the measure of its interior angles?


What is the sum of the interior angles of a polygon with 25 sides?

The formula for the sum of the interior angles of a polygon is: 180 * (n - 2) where n is the number of sides of the polygon. So the sum of the angles of a polygon with 25 sides is 180 * 23 = 4,140.


What is the formula for finding the sum of the interior angles of a polygon?

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


The sum of the interior angles of a polygon?

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


What is the formula for the sum of the interior angles of a polygon?

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


How the sum of interior angles is 2520?

A polygon that has a sum of 2520 degrees of interior angles has 16 sides


How many sides does a polygon have when the sum of its interior angles is equal to the sum of its exterior angles?

Four sides


How is the number of sides related to the sum of the interior angles of a polygon?

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


What is the sum of the interior angle measures of a polygon?

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


If the sum of the interior angle measures of a polygon is 1440 degrees how many sides does the polygon have?

The answer is 11 sides If a polygon with 10 sides the sum of the interior angles are 1440° So 1440°+180°= 1620°


What is the formula for sum of the interior angles of a polygon?

It is: (n-2)*180 = sum of interior angles whereas 'n' is the number of sides of the polygon


What is sum of the interior angles of a polygon with three sides?

the sum of the interior angles of a 3 sided polygon is = 180 degrees. the sum of the interior angles of any polygon is given by 540/n. in this case n is = 3