Find the sum of the angles of a polygon with 9 sides.
A) $1,262 ^ { \circ }$
B) $1,260 ^ { \circ }$
C) $1,270 ^ { \circ }$
D) $1,250 ^ { \circ }$
E) none of these

Question

Quizplus · Accepted Answer

The sum of the interior angles of a polygon with $n$ sides can be found using the formula:
$$(n-2)	imes180^\circ$$
Substituting $n=9$, we get:
$$(9-2)	imes180^\circ=7	imes180^\circ=1,260^\circ$$
Therefore, the sum of the angles of a polygon with 9 sides is $1,260^\circ$, which is option B.

Find the Sum of the Angles of a Polygon with 9