SOLUTION: If each interior angle of a regular polygon measures 140 degrees, how many sides does the polygon have?
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Question 231978: If each interior angle of a regular polygon measures 140 degrees, how many sides does the polygon have?
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
If each interior angle of a regular polygon measures 140 degrees, how many sides does the polygon have?
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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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