1.	Which of the following best describes the front and back cover of a textbook when closed?
		A.	skew lines	B.	parallel planes
		C.	intersecting lines	D.	parallel lines
		Hint
	2.	Which segment is skew to ?
		A.		B.
		C.		D.
		Hint
	3.	Find the measure of if , and
		A.	60	B.	70
		C.	65	D.	110
		Hint
	4.	8 and 13 are _______.
		A.	consecutive interior angles	B.	corresponding angles
		C.	alternate interior angles	D.	alternate exterior angles
		Hint
	5.	Which statement is true about skew lines?
		A.	They lie in the same plane.	B.	They do not intersect.
		C.	They are perpendicular	D.	They intersect
		Hint