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Mathematics 17 Online
OpenStudy (anonymous):

what is the sum of the interior angles for a pentagon

OpenStudy (anonymous):

The sum of the interior angles of the pentagon is the sum of the interior angles of the three triangles. The sum of the interior angles of a triangle is 180o so the sum of the interior angles of the pentagon is 3 times 180o which is 540o.

OpenStudy (welshfella):

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