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Relation between Side and Perimeter of a Square/ Rectangles

The perimeter...

Question

The perimeter is 154 m of a rectangular pool length is two more than twice the breadth what is the length and breadth

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Solution

perimeter of a rectangle ,p=2(l+b).......(1)
p=154m
l:length
b:breadth
from question
l=2b+2.................(2)

put (2) in (1) p=154=2((2b+2)+b)

154=2(3b+2)
154=6b+4
6b=150
b=150/6
b=25
therefore l=2*25+2
l=52

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