Question

What is the sum of the measures of the interior angles of a 12-gon? 1620� 1800� 1980� 2160�

Answer 1

sum = 1800°

Explanation:

the sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

here n = 12 , then

sum = 180° (12 - 2) = 180° × 10 = 1800°