1.
		A.	center	B.	diameter
		C.	radius	D.	circumference
		Hint
	2.	The exact circumference of a circle with a radius of 6 is ____.
		A.		B.
		C.		D.	37.7
		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.	94.2 mm2
		C.	1413.7 mm2	D.	225.0 mm2
		Hint
	5.	What is the area of the shaded region in the square?
		A.	6 cm2	B.	18 cm2
		C.	27 cm2	D.	15 cm2
		Hint