An airplane pilot sights a life raft at a 26 degree angle of depression. The airplane's altitude is 9 miles. What is the plane's surface distance from the raft? The crossbar of a field goal post is 10 feet high. A kicker is attempting a field goal from 40 yards. What would be the smallest angle of elevation that would convert the field goal? (1 yard is 3 feet)

Two buildings are 50 meters apart. If the height of each building is 30 feet, what is the angle of elevation from the base of one ubilding to the top of the other? (1 meter is 3.28 feet)