1.	The quadrilateral below is a parallelogram because_______.
		A.	the diagonals bisect each other	B.	the diagonals are perpendicular
		C.	the diagonals are not congruent	D.	it is a square
		Hint
	2.	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 parallel.
		C.	Both pairs of opposite angles are congruent.
		D.	Both pairs of opposite sides are congruent.
		Hint
	3.	Find the values of x and y that ensure that the quadrilateral is a parallelogram.
		A.	x = 16, y = 26	B.	x = 12, y = 13
		C.	x = 16, y = 12	D.	x = 13, y = 12
		Hint
	4.	Find the values of x and y that ensure that the quadrilateral is a parallelogram.
		A.	x = 90, y = 90	B.	x = 40, y = 50
		C.	x = 100, y = 80	D.	x = 80, y = 100
		Hint
	5.	Find the values of x. and y that ensure that LMNO is a parallelogram.
		A.	x = , y = 4	B.	x = 4, y =
		C.	x = 8, y = 1	D.	x = , y =
		Hint