Posted by Chloe Mack on Sunday, January 30, 2011 at 6:19pm.
A pilot in a plane at an altitude of 22,000 feet observes that the angle of depression to a nearby airport is 26 degrees. How many miles is the airport from a point on the ground directly below the plane?

PreCalculusTrig  Damon, Sunday, January 30, 2011 at 6:25pm
tan 26 = (22,000/d)
d tan 26 = 22,000
d = 22,000 / tan 26 = 45,107