1.	The quadrilateral below is a parallelogram because_______.
		A.	both pairs of opposite sides are congruent
		B.	both pairs of opposite angles are congruent
		C.	the diagonals bisect each other
		D.	it has four sides
		Hint
	2.	The quadrilateral below is a parallelogram because_______.
		A.	the diagonals are not congruent	B.	it is a square
		C.	the diagonals bisect each other	D.	the diagonals are perpendicular
		Hint
	3.	Which of the following does not guarantee that a quadrilateral is a parallelogram?
		A.	Both pairs of opposite sides are parallel.
		B.	Both pairs of opposite angles are congruent.
		C.	A pair of consecutive sides are congruent.
		D.	Both pairs of opposite sides are congruent.
		Hint
	4.	Find the values of x and y that ensure that the quadrilateral is a parallelogram.
		A.	x = 12, y = 13	B.	x = 16, y = 12
		C.	x = 13, y = 12	D.	x = 16, y = 26
		Hint
	5.	Which are the coordinates of the vertices of a parallelogram?
		A.	(-3, 2), (-1, 3), (2, 2), (0, 1)
		B.	(-2, 1), (-3, 2), (-4, 3), (1, 1)
		C.	(0, 0), (1, 2), (6, 2), (4, 0)
		D.	(4, 1), (3, 5), (0, -2), (3, 3)
		Hint