1.	What is a polyhedron?
		A.	cylinder	B.	cone
		C.	sphere	D.	pyramid
		Hint
	2.	How many faces does an octahedron have?
		A.	4	B.	12
		C.	6	D.	8
		Hint
	3.	What is the locus of all points in space that are 6 units from a given point?
		A.	circle of radius 6 units.
		B.	circle of radius 36 units.
		C.	sphere of radius 36 units.
		D.	sphere of radius 6 units.
		Hint
	4.	Which description corresponds to the boundary below?
		A.	all points in a plane that are 4 units from a given point in that plane
		B.	all points in a plane that are 4 units from a given segment in that plane
		C.	all points in space that are 4 units from a given point
		D.	all lines in a plane parallel to a given line in that plane
		Hint
	5.	What is the locus of points in a plane that are less than 4 units from a given point in the plane?
		A.	The interior of a sphere of radius 4.
		B.	The interior region of a circle of radius 4.
		C.	A circle of radius 4.
		D.	A sphere of radius 4.
		Hint