*The length of one side of the rectangle is twice the length of its adjacent side. If the
perimeter of rectangle is 60 cms, find the area of the rectangle.
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l =2b
perimeter=2(l+b)
60/2=l+b
30=l+b
30=2b+b
30=3b
30/3=b
b=10cms
l=20cms
area =lb
area =10*20=200sq cms
perimeter=2(l+b)
60/2=l+b
30=l+b
30=2b+b
30=3b
30/3=b
b=10cms
l=20cms
area =lb
area =10*20=200sq cms
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