How many sides does a polygon have if the sum of its interior angles is 1,260º?
1 answer:
The sum of interior angle is = 180(n-2) where n denotes the number of sides
so 1260° =180(n-2), n -2= 1,280/180=7, so n=7+2=9
the answer is <span>C. 9
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Um not sure but thanks for asking:)
