# What is the square root of 12?

$\sqrt{12} \implies \sqrt{4 \cdot 3} \implies \sqrt{4} \sqrt{3} \implies 2 \sqrt{3}$
Or, if a number is needed, we can estimate $\sqrt{3}$ as $1.732$ give:
$2 \sqrt{3} \cong 2 \cdot 1.732 \cong 3.464$