1.	Find the value of x.
		A.	37	B.	42
		C.	52	D.	47
		Hint
	2.	is a diameter. Find .
		A.	180	B.	270
		C.	360	D.	90
		Hint
	3.	In circle H, and GI = 15. Find HK and
		A.	7.5; 180	B.	7.5; 90
		C.	15; 90	D.	15; 180
		Hint
	4.	If P is the center of the circle, find the value of x.
		A.		B.	23
		C.	34	D.	-25
		Hint
	5.	If is a diameter of the circle, MR = 12, and the circle has radius 10, then find NM.
		A.	16	B.	4
		C.	8	D.	6.6
		Hint