# What is tha square root of 54?

$\sqrt{54} = \textcolor{b l u e}{3 \sqrt{6}} \textcolor{w h i t e}{\text{xxx}}$...or approximately $\textcolor{b l u e}{7.3485}$
$54 = 9 \times 6 = {3}^{2} \times 6$
$\sqrt{54} = \sqrt{{3}^{2} \times 6} = \sqrt{{3}^{2}} \times \sqrt{6} = 3 \sqrt{6}$