Question

The perimeter of a rectangle is 40 cms. Can you find the length of the rectangle if its breadth 8 cms?

• A. 12 cm
• B. 10 cm
• C. 4 cm
• D. 3 cm

Answer 1

The correct option is A

12 cm

Let the length of the rectangle = “p” cms

Perimeter of a rectangle = 2 ( length + breadth )

Hence 2 (p + 8 ) = Perimeter of the given rectangle

Forming an equation:

$2(p+8)=40$

$2p+16=40$

$\Rightarrow 2p=40-16=24$

$\Rightarrow p=\frac{24}{2}=12\text{cms}$