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A wire is bent into the form of square of side 5cm . Again the wire is straightened and bent into the form of circle. What will be the radius and area of the circle so formed. |
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Answer» perimeter = 4×5 = 20 cm 2πr = 20 r = 20 / 2π r = 3.184 cm Area = πr^2 = 31.83 cm^2 |
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