Enter both a decimal approximation AND an exact, simplified radical for $\displaystyle \sqrt{{{18}}}$.

$\displaystyle \sqrt{{{18}}}\approx$
Hint: Answers should be correct to at least 3 decimal places.


$\displaystyle \sqrt{{{18}}}=$Preview Question 6 Part 2 of 2  
Hint: For $\displaystyle {2}\sqrt{{{3}}}$, you can type in 2*sqrt(3) or use the template.