Question

1. Tick the correct answer. Each question carries $2$ mark.

(ii) If area of a square is $144c{m}^2$ then perimeter is :

• A. $12cm$
• B. $24cm$
• C. $36cm$
• D. $48cm$

Answer 1

The correct option is D

$48cm$

The area of square$={\left(side\right)}^2$

${\left(side\right)}^2=144\Rightarrow side=\sqrt{144}\Rightarrow side=12cm$

Perimeter of square$=4\times side$

Perimeter $=4\times 12=48cm$