Question

3. (a) Determine the sum of the interior angles of the polygon below.

(b) Determine the measure of the angle indicated by the letter, a, in the polygon.

Answer 1

A) 720

B) a=120

Explanation:

A) 6 sided polygon interior angle sum is (6-2)*180=720.

B) 90+110+115+160+125+a=720, a=120