Question

The length of a rectangle is twice its breadth. If the perimeter is 72 metre. Find the length and breadth of the rectangle.​

Answer 1

Step-by-step explanation:

Let the breadth be a

Then length = 2(a) = 2a.

We know that, Perimeter of rectangle = 2( length + breadth) .

Given perimeter = 72 m

=> 72m =2( a+2a)

=> 36=3a

=> a =12

Hence, Length is 2(12) = 24 m

Breadth is a =12 m

Answer 2

Answer:

Length = 24m

Breadth = 12m

Step-by-step explanation:

Perimeter = 2(l+b) = 72m

L = 2b

Perimeter = 2(2b+b) = 72m

= 2(3b) = 6b

6b = 72

B = 72/6 = 12

B = 12

L = 2b = 2*12 = 24