Question

What is the square root of $98$?

Answer 1

Determine the square root of $98$.

The square root of a number is the value that returns the original number when multiplied by itself.

Find the prime factors of $98$:

$98=2\times 7\times 7$

Take square root from both sides of the above equation:

$$\begin{gathered} \sqrt{98}=\sqrt{2\times 7\times 7} \\ \Rightarrow \sqrt{98}=7\times \sqrt{2} \\ \Rightarrow \sqrt{98}=7\times 1.414 \\ \Rightarrow \sqrt{98}=9.898 \end{gathered}$$

Hence, the square root of $98$ is$9.898$.