Find the sum of the interior angles of a nonagon. (1 point)
140°
1,620°
1,260°------
1,450° My teacher showed this question and she explained the answer was the 3rd one but i just don't get it
The answer is 1260. The formula of finding the sum of interior angles is
s - 2 x 180.
S is the number of sides. Since a Nonagon has 9 sides, replace s with 9.
9-2=7
7x180=1260