Question

Find the length of the rectangle, given that the perimeter is 36 cm and the breadth is 6 cm.

• A. $9cm$
• B. $10cm$
• C. $12cm$
• D. $14cm$

Answer 1

The correct option is C $12cm$

Given:
Perimeter of the rectangle, $P=36cm$
Breadth of the rectangle, $B=6cm$
Let the length of the rectangle be $L$.
$P=2\times (L+B)$
$\Rightarrow 36=2\times (L+6)$
$\Rightarrow 18=L+6$
$\Rightarrow L=12cm$
Hence, the length of the rectangle is $12cm$.