Question

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

(i) one side (ii) perimeter

Answer 1

Let each side of the square be x cm.

$\therefore$ Its area $=x^2=169$ (given)

$x=\sqrt{169}$

$\therefore$ x=13 cm

(i)Thus, side of the square =13 cm

(ii)Again perimeter =4(side) $=4\times 13=52$ cm