Polygon how many sides does it have?
Asked by maham237 @ in Mathematics viewed by 290 People
A polygon has an interior angle sum of 2520 degrees. How many sides must the polygon have?
Answered by maham237 @
So since the formula for the sum of a polygon's interior angles is (n-2)180, just make that equal to 2520 and solve for n, which is the number of sides.
STEPS:
1) (n-2)180 = 2520
2) n-2 = 2520/180
3) n-2 = 14
4) n = 16
So the polygon must have 16 sides
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