Question

Evaluate each expression

$\sqrt{16}$

Short answer

Expression $\sqrt{16}$results into 4

Step-by-step solution

- Meaning of a

The symbol $\sqrt{}$ is used to denote square root of a number.

Thus $\sqrt{a}$ denotes square root of $\text{'}a\text{'}$

- Find a whole number whose square is 16

Since, $4^2=16$

So, a whole number whose square is 16 is 4

- Simplify 16

Since, square of 4 is 16

So, square root of 16 is 4, $\sqrt{16}=4$

Thus, value of $\sqrt{16}$ is 4