1.	The common endpoint of two rays is called a(n)
		A.	opposite ray.	B.	side.
		C.	angle.	D.	vertex.
		Hint
	2.	Which angle is an example of opposite rays?
		A.		B.
		C.		D.
		Hint
	3.	What is CAE ?
		A.	155	B.	25
		C.	70	D.	85
		Hint
	4.	If mABC = 72 and mCBD = 38, what is mABD ?
		A.	100	B.	110
		C.	34	D.	55
		Hint
	5.	What is mJMK if mJML = 140?
		A.	85	B.	55
		C.	35	D.	125
		Hint
	6.	Find an angle that forms a linear pair with 4.
		A.	GMH	B.	HMB
		C.	AMH	D.	GMA
		Hint
	7.	Find an angle that is supplementary to ASR.
		A.	HSN	B.	RSB
		C.	ASJ	D.	ASN
		Hint
	8.	What is the value of x?
		A.	180	B.	40
		C.	50	D.	130
		Hint
	9.	If LBH JBL, find the measure of HBC.
		A.	58	B.	48
		C.	52	D.	42
		Hint
	10.	What is m13 if m11 = 8n - 6 and m12 = 6n - 2?
		A.	90	B.	20
		C.	110	D.	70
		Hint
	11.	Which statement describes the measure of an obtuse angle S??
		A.	S = 90	B.	S < 90
		C.	90 < S < 180	D.	S > 180
		Hint
	12.	Do 1 and TCN form a linear pair? Justify your answer.
		A.	No; the angles are not the same measure.	B.	No; the angles are not adjacent.
		C.	Yes; two noncommon sides are opposite rays.	D.	Yes; the angles have the same vertex and share a common side.
		Hint
	13.	An angle that is the supplement of an acute angle must be ________.
		A.	acute	B.	obtuse
		C.	right	D.	straight
		Hint
	14.	If a line, j, is in a plane and point B is on j, how many lines in that plane are perpendicular to j at B?
		A.	two	B.	one
		C.	infinite	D.	zero
		Hint