1.	In the figure below, the diagonals of the square pass through the center of the circle. Find the exact circumference of the circle.
		A.	28	B.
		C.		D.
		Hint
	2.	Refer to circles B and D in the figure below. If BC = 5 and CD = 5, find AE.
		A.	20	B.	10
		C.	25	D.	15
		Hint
	3.
		A.	320	B.	40
		C.	20	D.
		Hint
	4.
		A.	7.8	B.	1.6
		C.	12.3	D.	24.6
		Hint
	5.	is a diameter. Find .
		A.	90	B.	270
		C.	360	D.	180
		Hint
	6.
		A.	7	B.	5
		C.	4	D.	6
		Hint
	7.
		A.	40	B.	70
		C.	140	D.	220
		Hint
	8.	The center of the circle with equation (x - 3)2 + (y + 2)2 = 4 has coordinates ___.
		A.	(-3, -2)	B.	(3, 2)
		C.	(3, -2)	D.	(-3, 2)
		Hint
	9.	Which is an equation of the circle with center at P(-2, 5) and radius 2?
		A.	(x + 2)2 + (y - 5)2 = 4	B.	(x - 2)2 + (y + 5)2 = 2
		C.	(x + 2)2 + (y - 5)2 = 2	D.	(x - 2)2 + (y + 5)2 = 4
		Hint
	10.	is a diameter of the circle. Find the value of x.
		A.		B.
		C.	7	D.
		Hint
	11.	In the figure, if PQ = 16 and CD = 30, then what is the length of a radius of the circle?
		A.	16	B.	8
		C.	17	D.	15
		Hint
	12.	If is a diameter of the circle, MR = 12, and the circle has radius 10, then find NM.
		A.	8	B.	4
		C.	16	D.	6.6
		Hint
	13.	is tangent to circle S. LT = _______.
		A.	12	B.
		C.		D.	18
		Hint
	14.	Find the value of z.
		A.	1	B.	6.5
		C.	12.25	D.	4
		Hint
	15.	Find the value of x.
		A.	7.5	B.	6
		C.	3	D.	12
		Hint
	16.
		A.	62.5	B.	125
		C.	75	D.	37.5
		Hint