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2015-01-28T13:08:32+05:30

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Cost = Rs. 50 per meter
total cost = Rs. 26400

perimeter = \frac{26400}{50} =528m

2 \pi r=528 \\  \\ r= \frac{528}{2 \pi }  \\  \\ r=\frac{528*7}{2*22 }=\boxed {84m}
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2015-01-28T14:32:10+05:30

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Cost of [email protected]/m =>Circumference of circle =26400/50=528m Circumference of circle =528m 2πr=528 r=84m
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