Question

The sides of a rectangular park are in the ratio 4:3.If it's area is 1728m square :find its perimeter

Answer 1

Answer:

Step-by-step explanation:

Let the side be x.

Area = l*b

=> 1728 = 4x*3x

=> 1728 = 12x²

=> 1728/12 = x²

=> 144 = x²

=> 12 = x

Sides: 4x = 4*12 = 48m

3x = 3*12 = 36m

Perimeter = 2(l+b)

=> 2(48+36)

=> 2(84)

=> 168m