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Mathematics 15 Online
OpenStudy (anonymous):

The sum of the interior angles of a convex n-sided polygon can be found using what formula

OpenStudy (anonymous):

Sum = ( n −2) × 180°

OpenStudy (anonymous):

|dw:1342559048283:dw|

OpenStudy (anonymous):

I'll explain where the formula @sarah43 posted come from; Here I have an hexagon, it could be divided into 4 triangles, and we know that the sum of interior angle of a triangle is 180 degrees, therefore, the sum of interior angles of an hexagon is 180*4.

OpenStudy (anonymous):

|dw:1342559175767:dw|

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