POLYGONS 1

Find the exterior angle of a regular polygon with 18 sides.

Solution

n = 18

e =   360

         n

e =   360

         18

e =   360 ²⁰

        18

e = 20⁰

Hence the interior angle is 20⁰

TRY THIS………………………………………..

Find the exterior angle of a regular polygon with 40 sides.