SOLUTION: how many sides does a polygon havi if the sum of its interoir angels is 3240

Question 284187: how many sides does a polygon havi if the sum of its interoir angels is 3240
Found 2 solutions by dabanfield, Alan3354:
Answer by dabanfield(803) (Show Source): You can put this solution on YOUR website!
how many sides does a polygon havi if the sum of its interoir angels is 3240
We have a theorem that the sum of the interior angles of a polygon with n sides is equal to (n-2)*180.
So we have:
(n-2)*180 = 3240
180n - 360 = 3240
180n = 3240-360
180n = 2880
Solve the above equation for n.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
(n-2)*180 = 3240
n-2 = 18
n = 20

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