Question

Find the square root of $18$.

Answer 1

Compute the square root of the given number.

The given number is $18$.

$\therefore$Factors of $18$ are: $2\times 3\times 3$

So, $18=2\times 3\times 3$

Taking square root on both sides.

$$\begin{gathered} \sqrt{18}=\sqrt{2\times 3\times 3} \\ \Rightarrow \sqrt{18}=3\sqrt{2} \\ \Rightarrow \sqrt{18}=3\times 1.414 \\ \Rightarrow \sqrt{18}=4.242 \end{gathered}$$

Hence, the square root of $18$is $4.242$.