1.	Classify the angle below.
		A.	right	B.	straight
		C.	obtuse	D.	acute
		Hint
	2.	Classify the angle whose measure is 100°.
		A.	straight	B.	obtuse
		C.	acute	D.	right
		Hint
	3.	At what time will the hands of a clock be closest to forming a straight angle?
		A.	9:15	B.	10:10
		C.	7:45	D.	1:30
		Hint
	4.	Classify the angle below.
		A.	right	B.	straight
		C.	obtuse	D.	acute
		Hint
	5.	Which angle has a measure of 170°?
		A.		B.
		C.		D.
		Hint