Question

The area of a square is $169c{m}^2$. Find its perimeter

Answer 1

Let the side of the square $=a$ cm

We know that the area of the square $=a^2=169$

$\Rightarrow a=\sqrt{169}=13cm$

Now, perimeter of the square $=4a=4\times 13=52cm$

Hence, the perimeter is $52cm$.