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The sum of the measures of the interior angles of a polygon is 1620°. How many sides does the polygon have? __
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The sum of the measures of the interior angles of a polygon is 1620°.

How many sides does the polygon have?
__

User Yevhenii
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1 Answer

3 votes
you should end up with 11 sides............

sum=(n-2)180
1620=(n-2)180

n-2=9
n=11 sides
User Sean Ryan
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