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Inessa05 [86]
3 years ago
6

If an interior angle of a regular measures 140º, how many sides does the polygon have?

Mathematics
1 answer:
Scilla [17]3 years ago
6 0

9

Hope this helps :)

Sum of the angles of a polygon is (n-2)*180

Each angle is (n-2)*180/n

140 = (n-2)*180/n

140n = 180n - 360

-40n = -360

n = 9

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