Question

The sum of interior angle of a regular polygon is 900 degrees. Find the number of sides of the polygon

Answer 1

7

Explanation:

(number of sides - 2) x 180 = sum of interior angles

(number of sides - 2) x 180 = 900

Reverse the formula.

900 / 180 = 5

5 + 2 = 7

Therefore, number of sides = 7