the parameter of a rectangle is 160 meter, and the difference of two sides is 48 meter. find the side of a square whose area is equal to the area of this ractangle.
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2(l+b)=160
1+b=80.........(i)
l−b=48.........(ii)
On solving (i) and (ii)
l=64, b=16
⇒ area of square = area of rectangle
⇒(side)2=64×16
⇒side=64×16−−−−−−√=32m
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