1.
		A.	circumference	B.	diameter
		C.	center	D.	radius
		Hint
	2.	The diameter of a circle is 7.5. Find the circumference to the nearest tenth.
		A.	35.4	B.	23.6
		C.	16.8	D.	47.1
		Hint
	3.	Find the radius of a circle with circumference .
		A.	4	B.
		C.	16	D.	8
		Hint
	4.	What is the area of the shaded region? Round the answer to the nearest tenth.
		A.	201.1 cm2	B.	31.4 cm2
		C.	172.8 cm2	D.	182.2 cm2
		Hint
	5.	What is the area of the shaded region in the square?
		A.	15 cm2	B.	18 cm2
		C.	27 cm2	D.	6 cm2
		Hint