Question

If $m$ is the square of a natural number $n$, then $n$ is

• A. the square of $m$
• B. greater than $m$
• C. equal to $m$
• D. $\sqrt{m}$

Answer 1

The correct option is D

$\sqrt{m}$

Solve for the required value:

Given that $m$ is the square of natural number $n.$

$\Rightarrow n^2=m$

Applying square root on both sides, we get,

$\begin{array}{rcl}\sqrt{n^2}& =& \sqrt{m}\\ & \Rightarrow & n=\sqrt{m}\end{array}$

Hence, the correct option is option(D) i.e. $\sqrt{m}.$