breath --- x
length --- (5/3)x
2x + 2(5/3)x = 64
times 3
6x + 10x = 192
x = 12
area = x(5/3)x = (5/3)(144) = 240 cm^2
The length of a rectangle of perimeter 64 cm is 5/3 of its breadth . Find the area of rectangle ?
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