1.	Classify the angle below.
		A.	obtuse	B.	right
		C.	straight	D.	acute
		Hint
	2.	Classify the angle below.
		A.	obtuse	B.	straight
		C.	right	D.	acute
		Hint
	3.	Classify the angle whose measure is 100°.
		A.	obtuse	B.	acute
		C.	right	D.	straight
		Hint
	4.	Angles A and B are supplementary. If = 45°, find .
		A.	135°	B.	45°
		C.	75°	D.	90°
		Hint
	5.	Classify the angle below.
		A.	acute	B.	obtuse
		C.	right	D.	straight
		Hint