Asked by Brandi
Having a very hard time. Can someone please help. Im trying to find how many sides a polygon has if, the difference of the interior and exterior angles is 100 degrees?
Answers
Answered by
Steve
Just use what yo know about the interior and exterior angles. If there are n sides, you want
180(n-2)/n = 360/n + 100
180n-360 = 360 + 100n
80n = 720
n = 9
check:
180*7/9 = 40+100
180(n-2)/n = 360/n + 100
180n-360 = 360 + 100n
80n = 720
n = 9
check:
180*7/9 = 40+100
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