1.	is ____.
		A.	a right angle	B.	an angle of elevation
		C.	an obtuse angle	D.	an angle of depression
		Hint
	2.	The angle of depression from the top of one building to the top of a neighboring building is 12°. If the buildings are 50 feet apart, what is the difference between the heights of the buildings? Round your answer to the nearest tenth of a foot.
		A.	235.2 ft	B.	48.9 ft
		C.	10.4 ft	D.	10.6 ft
		Hint
	3.	Caving While surveying Overlook Cave, Mike measures the angle of elevation from his line of sight to the top of a rock formation as 22°. The rock formation is 10 feet away and he is measuring from a point 3 feet above the floor of the cave. To the nearest tenth of a foot, how high is the rock formation?
		A.	27.8 ft	B.	7.0 ft
		C.	4.0 ft	D.	24.8 ft
		Hint
	4.	If Crystal is standing on a 15-foot diving board, and her friend Pablo is 48 feet from the spot in the pool underneath the diving board, what is the angle of depression from Crystal to Pablo, to the nearest tenth of a degree?
		A.	1.2°	B.	3.8°
		C.	72.6°	D.	17.4°
		Hint
	5.	ARCHITECTURE The observation deck of the John Hancock Center is 1030 feet above the ground. The Skydeck of the Sears Tower is 1335 feet above the ground. The John Hancock Center is 1.7 miles from the Sears Tower. What is the angle of elevation of someone standing on the observation deck of the John Hancock Center looking up to the Skydeck of the Sears Tower?
		A.	6.5°	B.	37.7°
		C.	1.9°	D.	8.5°
		Hint