Question

Length of a rectangle exceeds its breadth by 4m.if the perimeter of the rectangle is 84m find its length and breadth

Answer 1

let breadth be x
therefore length =x+4
perimeter =2(l+b)
84=2(x+x+4)
2x+4=84/2=42
2x=42-4=38
x=38/2=19
breadth=19
length=23

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Answer 2

this will help....
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