find the measure of an interior angle of a regular polygon of 9 sides.
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find the measure of an interior angle of a regular polygon of 9 sides.
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Answer:
140
Step-by-step explanation:
firstlywe have to find the totla number of the sum of the interior angles.
follow the steps----- sum of all interior angle =(2n-4) right angle
the n denotes the number of sides in the polynomial.
SO, (2*9-4) right angle
(18-4) right angles.
14 right angles, which means that (14*90)= 1260
Now to find each interior angle divide 1260/9
so the measure of each angle is 140.