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Mathematics 6 Online
OpenStudy (anonymous):

where did the 2 came from on solving single exterior angle 180(#of sides- 2)

OpenStudy (jdoe0001):

due to lack of clairvoyance, we find ourselves in the precarious position to ask you, what do you mean?

OpenStudy (phi):

Your formula seems to be the sum of the interior angles of a polygon see http://www.regentsprep.org/Regents/math/geometry/GG3/LPoly1.htm

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