A pond is in the shape of square. there is a 3-m-wide pavement all around the pond. if the area of a pavement is 288 m sq., then find the area of pond.
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4*3*(x+3)=288
=>12x+36=288
=>12x=288-36
=>x=252/12
x=21
So area =441sq m
=>12x+36=288
=>12x=288-36
=>x=252/12
x=21
So area =441sq m
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