Question

the sides of a rectangular field are in the ratio 9:7and it's perimeter is 144m find the sides

Answer 1

Heya...
Here is your answer ----

Let the sides (length and breadth) be 9x and 7x respectively.


Ac/Q, It's perimeter is 144 m. So, :--

=> Perimeter = 2 × (l + b)

=> 144 = 2 × (9x + 7x)

=> 144 = 2 × 16x

=> 144 = 32x

=> x = 144/32

=> x = 36/8

=> x = 4.5


Length = 9x = 4.5 × 9 = 40.5 m

Breadth = 7x = 4.5 × 7 = 31.5 m


HOPE IT HELPS....!!!

Answer 2

Hey!

Given,
Ratio = 9:7

Let the sides be 9x and 7x respectively.

We know,
Perimeter = 2(l+b)
   144     = 2(9x + 7x)
   144     = 2*16x
   144     = 32 x
144/32 = x
4.5 = x

Now, length = 9x = 9 * 4.5 = 40.5 m
         breadth = 7x = 7 *4.5 = 31.5 m