Question

The length of a rectangle is twice its breadth. if the perimeter is 72m, find the length and breadth of the rectangle

Answer 1

Answer:

let, b=x

l=2x

given,

perimeter =72m

2(l+b)=72

2(x+2x) =72

2(3x)=72

6x=72

x=72÷6

x=12

l=2(x)=2(12)=24

b=x=12

Answer 2

Answer:l = 24m ,b = 12m

Step-by-step explanation:let the breadth of the rectangle be x

Then,

Length = 2x

Perimeter = 2(l+b)

72=2(2x+x)

72=2(3x)

72=6x

x=72/6

x= 12

Hence,

Breadth = 12 m

Length = 2 ×12 m

= 24m