1.   The quadrilateral below is a parallelogram because_______.
   
    A. both pairs of opposite angles are congruent
    B. the diagonals bisect each other
    C. both pairs of opposite sides are congruent
    D. it has four sides
    Hint

  2.   The quadrilateral below is a parallelogram because_______.
   
    A. the diagonals bisect each other B. the diagonals are not congruent
    C. the diagonals are perpendicular D. it is a square
    Hint

  3.   Which of the following does not guarantee that a quadrilateral is a parallelogram?
    A. A pair of consecutive sides are congruent.
    B. Both pairs of opposite sides are congruent.
    C. Both pairs of opposite angles are congruent.
    D. Both pairs of opposite sides are parallel.
    Hint

  4.   Find the values of x and y that ensure that the quadrilateral is a parallelogram.
   
    A. x = 1, y = 1 B. x = 2, y = 4
    C. x = 4, y = 2 D. x = 2, y = 1
    Hint

  5.   What value of ensures that QRST is a parallelogram?
   
    A. 117° B. 37°
    C. 36° D. 63°
    Hint



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