Question

Perimeter of a rectangle is 54 and it's ratio is 7:2 what is it's sides

Answer 1

Hi Mate!!!!

Let Sides of a rectangle be 7x:2x

2(7x+2x)= 54

9x = 27

x = 3 units

So, it's sides are

21 units
6 units.

Answer 2

2(l+b)=54
l+b=27
l÷b=7÷2
2l=7b
l=7b/2
7b/2+b=27
9b=27×2
b=6
l=21