the area of a rectangle is 120/49 cm square 2. if one of its side is 10/7 cm, find its perimeter ?
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area = 120/49
length = 10/7
breadth= ?
area of rectangle = l× b
120/49 = 10/7 × b
b= 120/49×7/10
b= 12/7
so, perimeter of rectangle= 2(l+ b)
=2(10/7+12/7)
= 2 × 22/7
= 44/7
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