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a square and rectangle have the same perimeter. calculate the area of the rectangle if the side of square is 40 cm and the length of the rectangle is 60 using formula of mensuration |
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Answer» Step-by-step explanation: side of SQUARE = 40 cm perimeter of the square=(4*40) cm=160 cm let the breadth of the rectangle be x cm length of rectangle = 60 cm as the perimeter of the rectangle = perimeter of the square, according to the problem, 2*(x+60)=160 or 2x+120=160 or 2x=160-120 or 2x=40 or x=20. therefore , AREA of rectangle =( 20*60) cm.sq.=1200 cm.sq. (ans) |
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