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sergiy2304 [10]
3 years ago
8

How many sides does a polygon have if the sum of its interior angles is 1,260º?

Mathematics
1 answer:
erica [24]3 years ago
3 0
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

</span>
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