Question

the sides of a rectangle are in ratio 5:4 . if its perimeter is 72 cm, then its length is

Answer 1

perimeter of rectangle=2(l+b)
=2*(5x+4x)
72=2*9x
18x=72
so x=4
if length=5x then length=5*4=20cm
if length=4x then length=4*4=16cm
I HOPE IT WILL HELP YOU.

Answer 2

Answer:

5x+4x=72

9x=72

x=72/9

x=8

Step-by-step explanation: