What is the sum of interior angle of a polygon with 9 sides

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Answered by GPT 3.5
The sum of the interior angles of a polygon can be calculated using the formula: (n-2) x 180 degrees, where n is the number of sides of the polygon.

For a polygon with 9 sides, the sum of the interior angles would be:
(9-2) x 180 = 7 x 180 = 1260 degrees

Therefore, the sum of the interior angles of a polygon with 9 sides is 1260 degrees.
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