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6 December, 11:50

The sum of the interior angles, s, in an n-sided polygon can be determined using the formula s=180 (n-2), where n is the number of sides. Benita solves this equation for n and writes the equivalent equation n=s/180+2. Using this formula, how many sides does a polygon have if the sum of the interior angles is 1,260?

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Answers (2)
  1. 6 December, 12:24
    0
    N=1260/180 + 2=7+2=9

    number of sides = 7
  2. 6 December, 15:43
    0
    The answer is 9 sides. I put 7 it was wrong
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