Question

the length and breadth of a rectangular field are in the ratio 5:4 if it's perimeter is 108m find the dimension of the field

Answer 1

Let the meet of ratio be x.

Since Perimeter of rectangular field = 2(l+b)

=) 108m = 2(5x+4x)

=) 108m = 2*9x

=) 108m / 18 = x

=) x = 6m.

Hence length = 5x = 5*6m
= 30m and
Breadth = 4x = 4*6m
= 24m.

Hope it's helpful to u.

Answer 2

hey there....

here is the answer


the formula for perimeter of rectangle is

2(lenght + breadth)

the length is 5x
the breadth is 4x

as the ratio is 5:4

so

2(5x+4x)= 108

2(9x)=108

18x=108

$x = \frac{108}{18}$

x is 6

108 becoz the perimeter is 108.

lenght will be

$5 \times 6$

so the length will be 30

the breadth will be

$4 \times 6$

so it will be 24.

so now we get the dimensions.

hope this helps u!!