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02-03-2017
Mathematics

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The circumference of a circle is 60pi cm what is the length of an of an arc 140 degrees

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02-03-2017

[tex]\displaystyle\\ C_{circle} = 60\pi ~cm\\ m(arc) = 140^o\\ \\ L_{arc} = \frac{60\pi \times 140}{360} =\frac{\pi \times 140}{6} =\boxed{\frac{70\pi}{3}~cm}[/tex]

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