1.	Which of the following does not guarantee that a quadrilateral is a parallelogram?
		A.	Both pairs of opposite angles are congruent.
		B.	Both pairs of opposite sides are congruent.
		C.	Both pairs of opposite sides are parallel.
		D.	A pair of consecutive sides are congruent.
		Hint
	2.	Find the values of x and y that ensure that the quadrilateral is a parallelogram.
		A.	x = 2, y = 1	B.	x = 1, y = 1
		C.	x = 2, y = 4	D.	x = 4, y = 2
		Hint
	3.	Which are the coordinates of the vertices of a parallelogram?
		A.	(4, 1), (3, 5), (0, -2), (3, 3)
		B.	(0, 0), (1, 2), (6, 2), (4, 0)
		C.	(-3, 2), (-1, 3), (2, 2), (0, 1)
		D.	(-2, 1), (-3, 2), (-4, 3), (1, 1)
		Hint
	4.	The coordinates of the vertices of WXYZ are W(-3, 3), X(6, 6), Y(1, 0), and Z(-5, -2).Determine if WXYZ is a parallelogram. Explain.
		A.	No. is not parallel to .
		B.	Yes. The two sets of opposite sides are parallel.
		C.	No. is not parallel to .
		D.	Yes. The two diagonals bisect each other.
		Hint
	5.	What value of ensures that QRST is a parallelogram?
		A.	63°	B.	36°
		C.	37°	D.	117°
		Hint