Question

each exterior of a regular polygon is two -third of its interior angle.find the no. of sides in the regular polygon.

Answer 1

Sounds like a homework assignment, so note that as the sum of the interior and exterior angles of a regular polygon is 180 degrees, which will also be four times the exterior angle (as the interior angle is 3 x the exterior)…. Once you have the exterior angle, you are now in a position to work out the number of sides