1.   A ______________ is a logical argument in which each statement is backed up by a statement that is accepted as true.
    A. theorem B. proof
    C. postulate D. definition
    Hint

  2.   Which of the following is not one of the five essential parts needed to construct a good proof?
    A. Develop a system of inductive reasoning.
    B. If possible, draw a diagram to illustrate the given information.
    C. State the theorem to be proved.
    D. List the given information.
    Hint

  3.   A _________ is a statement that describes a fundamental relationship between the basic terms of geometry and is accepted as true.
    A. theorem B. definition
    C. proof D. postulate
    Hint

  4.   Which of the following statements is not a postulate?
    A. Through any two points, there is exactly one line.
    B. Points that lie of the same plane are said to be coplanar.
    C. A plane contains at least three points not on the same line.
    D. If two lines intersect, then their intersection is exactly one point.
    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



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