SOLUTION: all about sum of the angles in a polygons?

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Question 73987: all about sum of the angles in a polygons?
Answer by psbhowmick(878) About Me  (Show Source):
You can put this solution on YOUR website!
Sum of all the external angles of any polygon is 360%5Eo.
For a regular polygon of n-sides, the sum of all the interior angles 180%28n-2%29%5Eo.