Tuesday 15 September 2015

REGULAR POLYGONS 1


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

Solution

n = 20

i = (n-2)180
         n

i = (20-2)180
          20

i = (18) x 1809
          201

i = 18 x 9

i = 162

Hence the interior angle is 1620

TRY THIS………………………………………..


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

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