12) The sum of the measures of the interior angles of a convex polygon is 3420°. How many sides does the polygon have?

Question

12)  The sum of the measures of the  interior angles of a convex polygon is  3420°.  How many sides does the  polygon have?

Mark M. · Accepted Answer

3420 = (n - 2)(180)     Basic formula for interior angles of a polygon.

Paul M. · Answer

180(n-2) = 3420  The sum of the angles of a polygon is n-2 straight angles.You solve it.

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