What is the sum of the measures of the interior angles of an 11-gon?

A.

1980°

B.

1620°

C.

1800°

D.

2340°

For this question you use this formula (n - 2) x 180 in this formula n stands for the number of sides your shape has. In this case you have a shape with 11 sides so you will subtract 2 from 11 which will give you 9 and then take your 9 and multiply it by 180 and you should get 1620.