1.   Lines a and b are parallel because1 and2 are _____.
   
    A. congruent alternate
exterior angles
B. congruent supplementary angles
    C. congruent alternate
interior angles
D. congruent corresponding angles
    Hint

  2.   For lines m and n cut by a transversal t, find x so that m || n.
   
    A. 12 B. 18
    C. 16 D. 15
    Hint

  3.   Find x so that g || h.
   
    A. 6 B. 8
    C. 9 D. 7
    Hint

  4.   Which lines are parallel if 5 6?
   
    A. B.
    C. No lines are necessarily parallel D.
    Hint

  5.   Find the value of x so that l n.
   
    A. 6 B. 17
    C. 24 D. 3
    Hint



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