1.	The diameter of a circle is 8. What is the radius?
		A.		B.	16
		C.	4	D.
		Hint
	2.	The exact circumference of a circle with a radius of 6 is ____.
		A.		B.
		C.	37.7	D.
		Hint
	3.	Find the radius of a circle with circumference .
		A.		B.	8
		C.	16	D.	4
		Hint
	4.	Find the area of a circle with a radius of 15 millimeters. Round to the nearest tenth.
		A.	706.9 mm2	B.	225.0 mm2
		C.	1413.7 mm2	D.	94.2 mm2
		Hint
	5.	What is the area of the shaded region? Round the answer to the nearest tenth.
		A.	182.2 cm2	B.	31.4 cm2
		C.	172.8 cm2	D.	201.1 cm2
		Hint