1.	The quadrilateral below is a parallelogram because_______.
		A.	the diagonals bisect each other
		B.	both pairs of opposite sides are congruent
		C.	it has four sides
		D.	both pairs of opposite angles are congruent
		Hint
	2.	The quadrilateral below is a parallelogram because_______.
		A.	it is a square	B.	the diagonals are perpendicular
		C.	the diagonals bisect each other	D.	the diagonals are not congruent
		Hint
	3.	Find the values of x and y that ensure that the quadrilateral is a parallelogram.
		A.	x = 40, y = 50	B.	x = 90, y = 90
		C.	x = 80, y = 100	D.	x = 100, y = 80
		Hint
	4.	Find the values of x and y that ensure that the quadrilateral is a parallelogram.
		A.	x = 2, y = 1	B.	x = 4, y = 2
		C.	x = 2, y = 4	D.	x = 1, y = 1
		Hint
	5.	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.	(-2, 1), (-3, 2), (-4, 3), (1, 1)
		D.	(-3, 2), (-1, 3), (2, 2), (0, 1)
		Hint