Question

The perimeter of a rectangle field is 18 cm; its breadth is 2 cm find the length of the field?

Answer 1

Given, Breadth =2 cm
Perimeter of a rectangle field =18 cm
$\Rightarrow 2\text{(length+breadth)}=18\text{cm}$
$\Rightarrow 2\text{(length}+2)=18$
$\Rightarrow \text{(length}+2)=\frac{18}{2}$
$\Rightarrow \text{length}+2=9$
$\Rightarrow \text{length}=9-2$
$\Rightarrow \text{length}=7\text{cm}$