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Mathematics 9 Online
OpenStudy (anonymous):

how do I find the number of sides of a polygon if I know that all of the interior angles add up to 144?

Directrix (directrix):

@Nullify More information needed. Is the polygon regular? Is it convex or concave? Would you check that interior angle sum of 144? The fewest number of sides that form a polygon is the triangle and the sum of the interior angles there is 180.

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