1.	How many faces does an octahedron have?
		A.	12	B.	8
		C.	4	D.	6
		Hint
	2.	What is the locus of all points in a plane that are 3 units from a given point in that plane?
		A.	sphere of radius 3 units.	B.	circle of radius 9 units.
		C.	circle of radius 3 units.	D.	segment of length 3 units.
		Hint
	3.	What is the locus of all points in a plane that are 7 units from the line in that plane?
		A.	a plane parallel to	B.	a line perpendicular to
		C.	two lines parallel to	D.	a line parallel to
		Hint
	4.	What is the locus of points in a plane that are less than 4 units from a given point in the plane?
		A.	A sphere of radius 4.
		B.	The interior region of a circle of radius 4.
		C.	A circle of radius 4.
		D.	The interior of a sphere of radius 4.
		Hint
	5.	What is the locus of points in space that are 2 units from a given line segment 7 units long?
		A.	A right cylinder of radius 1 and height 7 and hemispheres with radius 1 on each end of the cylinder.
		B.	A sphere of radius 3.5.
		C.	A sphere of radius 7.
		D.	A right cylinder with height 7 and radius 2 and hemispheres with radius 2 on each end of the cylinder.
		Hint