SOLUTION: in a regular n-gon it has interior angles of 156 so how many sides does it have?

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Question 260948: in a regular n-gon it has interior angles of 156 so how many sides does it have?
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
easy way is this:
180 - 156 = 24.
take 360/24 = 12
so, 12 sides.
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you could use
180(n-2)/n = 156
and get
180n - 360 = 156n
-360 = -24n
n = 12