1.	A ______________ is a logical argument in which each statement is backed up by a statement that is accepted as true.
		A.	postulate	B.	proof
		C.	theorem	D.	definition
		Hint
	2.	Which of the following is not one of the five essential parts needed to construct a good proof?
		A.	State the theorem to be proved.
		B.	List the given information.
		C.	If possible, draw a diagram to illustrate the given information.
		D.	Assume what you are trying to prove is true.
		Hint
	3.	Which of the following statements is not a postulate?
		A.	Through any two points, there is exactly one line.
		B.	A plane contains at least three points not on the same line.
		C.	If two lines intersect, then their intersection is exactly one point.
		D.	Points that lie of the same plane are said to be coplanar.
		Hint
	4.	A group of 7 people get together for a meeting. Before the meeting starts, they each shake hands with every person at the meeting. If a person only shakes hands with another person once, how many handshakes were there before the meeting began?
		A.	7	B.	21
		C.	42	D.	15
		Hint
	5.	If and lie in plane P. Which of the following postulates can be used to show that lies in plane P?
		A.	Through any two points, there is exactly one line.
		B.	A plane contains at least three points not on the same line.
		C.	If two points lie in a plane, then the entire line containing those points lies in that plane.
		D.	If two planes intersect, then their intersection is a line.
		Hint