Question

find the sun of the interior angles of a polygon of 9 sides​

Answer 1

Answer:

A polygon is any figure with three or more sides but here we are considering a polygon of 9 sides.

we have a formula to find the sum of the interior angles of a polygon of n sides.

Where n = number of sides = 9 (given)

so,

-->Sum of the interior angles of a polygon of n sides = 180*( n - 2 )

                                                                                         = 180*( 9 - 2)

                                                                                         =180*(7)

                                                                                         = 1260 degrees.

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**NOTE: There is another formula to find the Average degree per side.

Avg. degree per side = (180*( n - 2)) / n

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