Question

The perimeter of a rectangular swimming pool is 122m. It's length is 4m more than twice it's breadth. What are the length and the breadth of the pool​

Answer 1

Answer:

perimeter of rectangle=2× (L+B)

=2×(122+4)

=2×126

=256

I hope this is helpful to all

Answer 2

Answer:

hi and this is your answer

we know the perimeter  = 122m

let's take the case of length and breadth

we are told that

the length is 4m more than twice it's breadth

so according to the statement

lets take the breadth = x

then length would be = 2x+4

now to find them simply put the length and breadth into the formula

P = 2(l + b)

122m = 2(2x+ 4 + x)

122m = 4x + 8 + 2x

122m = 6x + 8

122m - 8 = 6x

6x = 122-8

6x = 114

x = 114/6

x = 19m

so b = 19 m

l = 2x + 4

l = 2 * 19 + 4

l = 38 + 4

l = 42

so therefore length = 42m

and breadth = 19m

if you are not sure put the length and breadth into the formula of perimeter you'll get the same answer as in the question that is 122m

hope it's helpful for you