Answer:
tan(22°) = h/20
Step-by-step explanation:
Step 1 in this type of a problem is to draw a picture. That way you can see the triangles and angles and distances and better understand their relationship. 2 minutes = 1/30 hour. So at 600 mph, the plan travels:
distance = rate x time
distance = 600 x (1/30
distance = 20 mi.
The angle of elevation to the plane after 2 minutes is 22°. So we have:
tan(22°) = h/20
where h is the plane's height. Solve for h.
I hope this helps!