REGULAR POLYGONS 1

Find the interior angle of a regular polygon with 30 sides.

Solution

n = 30

i = (n-2)180

         n

i = (30-2)180

          20

i = (28) x 180⁹

          20₁

i = 28 x 9

i = 252

Hence the interior angle is 252⁰

TRY THIS………………………………………..

Find the interior angle of a regular polygon with 20 sides.