1.
		A.	diameter	B.	center
		C.	radius	D.	circumference
		Hint
	2.	In the figure below, the diagonals of the square pass through the center of the circle. Find the exact circumference of the circle.
		A.	28	B.
		C.		D.
		Hint
	3.	In the figure, ABCD is a square and AC = 22. Find the circumference of the circle to the nearest tenth.
		A.	69.1	B.	48.9
		C.	34.6	D.	24.4
		Hint
	4.	If the circumference of a circle is 56.5, find the radius to the nearest whole number.
		A.	89	B.	9
		C.	18	D.	16
		Hint
	5.	Find the exact circumference of the circle in the figure.
		A.	17	B.	4.25
		C.	17	D.	8.5
		Hint