1.	OBCD is a square. What are the coordinates of D?
		A.	(a, 2a)	B.	(0, a)
		C.	(0, 0)	D.	(a, a)
		Hint
	2.	ABCD is a parallelogram. What are the coordinates of C?
		A.	(a + b, c)	B.	(a, c)
		C.	(b, a + c)	D.	(b, c)
		Hint
	3.	Find the x-coordinate of R if PQRS is a rectangle.
		A.	b	B.	2a
		C.	2b	D.	a
		Hint
	4.	What is the most specific description of quadrilateral ABCD?
		A.	parallelogram	B.	rhombus
		C.	square	D.	rectangle
		Hint
	5.	Points A, B, C, and D are the midpoints of , , , and respectively. What is the most specific description of quadrilateral ABCD?
		A.	square	B.	trapezoid
		C.	rectangle	D.	parallelogram
		Hint