1.	Find the circumference of the circle. Use for .
		A.	126 mm	B.	21 mm
		C.	132 mm	D.	66 mm
		Hint
	2.	Find the circumference of a circle whose radius is 1.25 yards. Use the key on a calculator. Round to the nearest tenth.
		A.	6.4 yd	B.	3.9 yd
		C.	7.9 yd	D.	4.8 yd
		Hint
	3.	Find the circumference of the circle. Use for .
		A.	16.5 m	B.	33 m
		C.	86.6 m	D.	8.4 m
		Hint
	4.	Find the circumference of a circle whose radius is 31 mm. Use the key on a calculator and round your answer to the nearest hundredth.
		A.	194.78 mm	B.	3019.07 mm
		C.	97.39 mm	D.	34.14 mm
		Hint
	5.	Aisha and McKinley are building a robot. It has wheels that have a radius of 7 inches. They need to know the distance the robot will travel for each revolution of the wheels. How far is this distance?
		A.	17 inches	B.	44 inches
		C.	22 inches	D.	154 inches
		Hint