SOLUTION: a convex polygon has 20 sides, find the sum of the interior angles.
Algebra.Com
Question 859611: a convex polygon has 20 sides, find the sum of the interior angles.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
S = 180(n-2)
S = 180(20-2)
S = 180*18
S = 3,240
So the sum of the interior sides is 3,240 degrees
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