Question

Two boats leave a dock. One heads north, and the other heads east. One hour later the two boats are 20 miles apart. The northbound boat traveled

Answer 1

$\begin{gathered} x^2=20^2-12^2 \\ x^2=400-144 \\ x^2=256 \\ x=\sqrt[]{256} \\ x=16 \end{gathered}$

The north boat traveled 16 miles!