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?
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First find the side.. 5x:1x = 6x = 216
Therefore side = 33 m
Length = 33 x 5 = 165 m
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shreyash001:
in answer options are (a) 16 cm (b) 18cm (c)24cm (d) None of these (e) Data inadequate
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b. 18cm
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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
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
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