Question

The length of rectangle is twice its breadth and its areas is 288 cm  `288cm^2` . Find the dimension of the rectangle

Answer 1

Let the length and breadth of the rectangle be 2x m and x m, respectively 

According to the question: 

`2x xx x=288` 

⇒`2x^2=288` 

⇒`x^2=144` 

⇒`x=12  or  x=-12` 

⇒ `x=12`                  ( ∵x cannot be negative) 

∴ Length =`2xx12=24 m` 

Breath =12m