Question

Which of the following can be used to find the sum of the interior angles for any regular polygon?

A. Add 1 to the number of sides and multiply the sum by 180
B. Divide the number of sides by 180
C. Subtract 2 from the number of sides and multiply the difference by 180
D. Multiply the number of sides by 180

Answer 1

To find the sum of the interior angles for any regular polygon, you need to subtract 2 from the number of sides and multiply the difference by 180.

Answer 2

Sum of Interior Angles = (Number of Sides -2) • 180 degrees
It seems C is the answer.