# What is the angle sum of a polygon with 9 sides?

A nonagon can have

Every triangle's angles have a sum of

This can be generalized to a polygon with

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The angle sum of a polygon with 9 sides can be found using the formula: (n - 2) * 180 degrees, where n represents the number of sides in the polygon. Substituting n = 9 into the formula, we get: (9 - 2) * 180 = 7 * 180 = 1260 degrees. Therefore, the angle sum of a polygon with 9 sides is 1260 degrees.

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