the length of a rectangle is twice its breadth.if its perimeter is 120 cm,find the length and the breadth of the rectangle
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2(1+b)
rectangle is 120 CM
6b=120
b=20 cm
l =40cm
hair the area of rectangle
20x40=800cm²
hence the length is 40 cm and breadth is 20 cm and area is 800 CM²
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