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Mathematics 6 Online
OpenStudy (anonymous):

The total number of degrees, D, in an n-sided polygon is given by the formula D= 180(n-2). When Janelle solves for n, she gets n=D+360/180. Sophie solved the same equation for n and got an equivalent equation. Which of the following could be Sophie’s equation? 1. N= d/180 + 2 2.N=D/180 -2 3. N=D-178 4. N=D-182

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