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Mathematics 15 Online
OpenStudy (anonymous):

The sum of 3 interior angles of a pentagon is 400 degrees. Find the sum of the rest of the interior angles A) 140 B) 220 C) 360 D) 260 show work please thanks (:

OpenStudy (anonymous):

The sum of the angles in a pentagon is 540 degrees. So 540-400=140.

OpenStudy (anonymous):

The sum of the angles in a shape with x points is (x-2)*180

OpenStudy (anonymous):

thx (:

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