Question

if the interior and exterior angle of a regular polygon is equal find the number of sides of the polygon​

Answer 1

no of sides of 4 as this can happen only in square or rectangle

Answer 2

The sum of the exterior angles of any polygon is 360.

And the formula to calculate the sum of interior angles if no. of sides are known is (n-2)180.

It's given that the interior and exterior angles are equal.....that actually means their respective sums are equal.

so

(n-2)180=360

n=4 is the number of sides