Question

How many sides does a polygon have if the sum of interior angles is equal to 18 right angles ? ( please give the answer with explanations if possible)

Answer 1

11

Explanation:

So the sum of the angles is 18 × 90 = 1620

the formula to find number of sides is n which is sides - 2 into 180 equals sum of interior angles

(n-2)*180 = 1620

n-2 = 1620/180

n- 2 = 9

n = 11

hope this helped