Question

What is the sum of the measure of the inner angle of a 13 sided polygon? A. 2340° B. 1300° C. 2700° D. 1980°

Answer 1

Hi there! :)

Answer:

D. 1980°

Find the sum of the measure of a 13-sided polygon using the formula:

Sum = 180(n-2), where n = number of sides

Therefore:

S = 180(13 - 2)

S = 180(11)

S = 1980°