1.	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
	2.	Quadrilateral HIJK is a parallelogram because________.
		A.	and ||	B.	and ||
		C.	|| and	D.	and ||
		Hint
	3.	What value of n would make quadrilateral FGHJ a parallelogram?
		A.	4	B.	10
		C.	2	D.	17
		Hint
	4.	Why is quadrilateral QRST a parallelogram?
		A.	One pair of opposite sides is both congruent and parallel.
		B.	Diagonals bisect each other.
		C.	Both pairs of opposite sides are parallel.
		D.	Both pairs of opposite sides are congruent.
		Hint
	5.	Is quadrilateral ABCD a parallelogram? Explain why or why not.
		A.	no; both pairs of opposite sides need to be congruent.
		B.	no; all angles must be congruent.
		C.	yes; opposite sides are congruent.
		D.	yes; diagonals bisect each other.
		Hint