Question

Please tell answer of this Question. The ratio between the perimeter and the breadth of a rectangles 5:1. If the area of the rectangle is 216 sq. m, what is the length of the rectangle?

Answer 1

First find the side.. 5x:1x = 6x = 216

Therefore side = 33 m

Length = 33 x 5 = 165 m

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Answer 2

perimeter (P): breadth (b) = 5:1
P:b = 5:1
P=5b
perimeter of rectangle = 2(l+b)
perimeter = 2l + 2b
5b = 2l + 2b
2l = 3b
b = 2l/3

area = lb
lb = 216
l(2l/3) = 216
2l² = 648
l² = 324
l = 18

Therefore, the length is $18m.$