1.	is ____.
		A.	a right angle	B.	an angle of elevation
		C.	an angle of depression	D.	an obtuse angle
		Hint
	2.	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.	4.0 ft	B.	27.8 ft
		C.	7.0 ft	D.	24.8 ft
		Hint
	3.	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.	3.8°	B.	72.6°
		C.	17.4°	D.	1.2°
		Hint
	4.	Raini is standing on a 40-foot cliff overlooking a river. The angle of depression to the near side of the river is 64°, and the angle of depression to the far side is 35°. How wide is the river, to the nearest tenth of a foot?
		A.	37.6 feet	B.	1.4 feet
		C.	226.9 feet	D.	13 feet
		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.	37.7°	B.	6.5°
		C.	1.9°	D.	8.5°
		Hint