Question

The area of a rectangle is 72 $c{m}^2$. If the breadth of the rectangle is 6 cm, find its length and perimeter.

Answer 1

Area of a rectangle $=$ length $\times$ breadth
$72=length\times 6$
$Length=\frac{72}{6}=12cm$
Perimeter of the rectangle $=2(l+w)$
$=2(12+6)=2\times 18=36cm$