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The perimeter of a circular field and a square field is equal. If the side of a square shape field is 22 m, what is the area of a circular field ?



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Let the radius of circular field is r and side of square field is a.
perimeter of square field = perimeter of circular field
4a = 2*π*r
4*22 = 2*22*r/7
r = 2*7 = 14 m
area of circular field = πr²
                             = 22*14²/7
                             = 22*14*2
                             = 616 m²
2 5 2
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