The length of a rectangle is twice that of its breadth. If its perimeter is 360 cm, calculate its area.
l = 2b
Perimeter P = 2 (l + b) = 360 cms.
2 (2b + b) = 360 cms
b = 60 cms
l = 120 cms
Area = 120 * 60 = 7200 sq. cms
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