Question

the breadth of rectangular plot is 20 m less than its length find the dimension if the perimeter is 120 m

Answer 1

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Answer 2

Answer:

Step-by-step explanation:

Let x be the length of a rectangular plot

Then, the breadth of a rectangular plot= (x-20)

Now, the perimeter of rectangular plot =20m

The perimeter of rectangular plot =2(l+b)

= 2(l+b)=120m

= 2(x+x-20) =120m

x+x-20=120/2

2x-20=60

2x=60+20

2x=80

x=80/2

x=40m

So the length of rectangular plot =40m,

And breadth of a rectangular plot =

x-20=40-20=20m