Distance A passenger in an airplane flying at an altitude
Chapter 4, Problem 4.8.40(choose chapter or problem)
Distance A passenger in an airplane flying at an altitude of 10 kilometers sees two towns directly to the east of the plane. The angles of depression to the towns are and (see figure). How far apart are the towns?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer