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Find the sum of the measures of the interior angles of a convex 20-gon

Find the sum of the measures of the interior angles of a convex 20-gon-example-1
User JoshKopen
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18 * 180 = 3240 degrees

If you'd like to know more, it is the number of sides - 2 multiplied by 180 degrees
User Nikolay Prokopyev
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