A plane is 30,000 feet off of the ground when it begins its approach to the runway. How far is the plane
from the runway if the pilot lowers the nose at an angle of depression of 12 degrees to meet the runway?
A person stands at the window of a building so that his eyes are 12.6 meters above the level ground. An
object is on the ground 58.5 meters away from the building on a line directly beneath the person. Compute the
angle of depression of the person’s line of sight to the object on the ground.