Find the sum of the measure of the interior angles of a polygon of 9 sides; of 32 sides

1260°; 5400°

Step-by-step explanation:

The sum of the measures of the interior angles of an n-sided convex polygon is

Sum = 180 (n-2) °

(a) For a nonagon

n = 9

Sum = 180 (9 - 2)

= 180 * 7

= 1260°

(b) For a dotriacontagon (a 32-gon)

n = 32

Sum = 180 (32 - 2)

= 180 * 30

= 5400°