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Algebra 8 Online
OpenStudy (anonymous):

Find the sum of the measures of the angles in a nonagon (9 sides).

OpenStudy (anonymous):

The total measure of the angles of a regular polygon can be found by this:\[180(n-2)\]..where n is the number of sides. This gives us..\[180(9-2)=180(7)=1260\]

OpenStudy (anonymous):

thank you !!!!

OpenStudy (anonymous):

Find the number of sides in the polygon with whose angles measures have the given sum. 540°

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