1.   Which explanation can be used to show that quadrilateral EFGH is a parallelogram?
   
    A. One pair of opposite sides is parallel and congruent. B. Both pairs of opposite sides are parallel.
    C. Both pairs of opposite sides are congruent. D. The diagonals bisect each other.
    Hint

  2.   Why is quadrilateral STUV a parallelogram?
   
    A. One pair of opposite sides is parallel and congruent. B. The diagonals bisect each other.
    C. Both pairs of opposite sides are parallel. D. Both pairs of opposite sides are congruent.
    Hint

  3.   Provide a counterexample for the statement. If one pair of opposite sides of a quadrilateral is parallel and the other pair of opposite sides is congruent, then the quadrilateral is a parallelogram.
    A. B.
    C. D.
    Hint

  4.   What value of n would make quadrilateral FGHJ a parallelogram?
   
    A. 17 B. 10
    C. 2 D. 4
    Hint

  5.   Find the value of n so that quadrilateral HJKL is a parallelogram.
   
    A. 14 B. 6
    C. 48 D. 36
    Hint