Question

The length of a rectangle is 20 m more than its breadth. If the perimeter is 100 m, find the

dimension of the rectangle.



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Answer 1

Answer:

let the breadth be x. therefore,length=x+20. therefore,breadth=15cm and length =15+20=35cm.

Answer 2

Answer:

length =35 breadth =15

Step-by-step explanation:

let the breadth be =x

so, the breadth is=x+20

perimeter of reactangel =100m =2(l+b)

100=2(x+20+x)

100=2x+40+2x

100=2x+2x+40. [ combining like terms ]

100=4x+40

100-40=4x. [ transposing]

60=4x

60/4=x

15=x

so the breadth is =x=15

and the length is =x+20=15+20=35