1.   Which problem-solving strategy is used in indirect proofs?
    A. decision-making B. draw a diagram
    C. working backward D. guess and check
    Hint

  2.   Name the property that justifies if AB < BC and BC < CD,
then AB < CD.
    A. Transitive Property B. Addition Property
    C. Division Property D. Comparison Property
    Hint

  3.   Choose the possible measure for 1 in the figure shown.
   
    A. 11° B. 180°
    C. D. 110°
    Hint

  4.   Name the property that justifies if a < b, then a + c < b + c.
    A. Addition Property B. Subtraction Property
    C. Transitive Property D. Comparison Property
    Hint

  5.   Complete the section of the indirect proof.
mW is a right angle. Therefore, mW = 90° by _______________.
    A. angle addition postulate B. definition of a right angle
    C. definition of perpendicular bisectors D. definition of perpendicular lines
    Hint



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