Question

Polygon The sum of the interior angles of the 10-sided polygon on the left is °

Answer 1

There are always 2 less interior angles then there are sides regarding polygons.

Each interior angle is 180 degrees in a polygon. So we have:

(10-2) x 180

8 x 180 = 1440

Answer 2

1440

Explanation:

S = (n - 2)*180

Where s is the sum and n is the number of sides

S = (10-2) * 180

S = 8*180

S =1440