Question

10. An airplane takes off the runway at an angle of 15 degrees. Afterthe plan has traveled 2 miles along its flight path how far away is it,along the ground, from the runway?

Answer 1

Use trigonometric functions to solve this problem

In this case, it is necessary to use cosine to find the adjacent side

$\begin{gathered} \cos 15=\frac{adj}{2} \\ 2\cdot\cos 15=adj \\ adj=1.93 \end{gathered}$

It is 1.93 miles far away from the runway