SOLUTION: find the measure of one interior angle of a regular 9-gon

SOLUTION: find the measure of one interior angle of a regular 9-gon

Algebra.Com

Question 274221: find the measure of one interior angle of a regular 9-gon
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
The formula for this is
x = (180(n-2)) / n
where n is the number of sides, so we get
x = (180(9-2)) / 9
x = 180(7) / 9
x = 1260 / 9
x = 140 degrees
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