Question

Area of a square is $144$ cm${}^2$. What could be the side of the square?

• A. $18$ cm
• B. $12$ cm
• C. $10$ cm
• D. $15$ cm

Answer 1

The correct option is B $12$ cm

Area of a square $=$ Side $\times$ Side $=$ Side${}^2$
$\Rightarrow$ Side${}^2=144$ cm${}^2$
We know, ${12}^2=144$
So, Side $=\sqrt{144}=12$ cm