1.	What is a polyhedron?
		A.	sphere	B.	cone
		C.	cylinder	D.	pyramid
		Hint
	2.	How many faces does an octahedron have?
		A.	12	B.	8
		C.	4	D.	6
		Hint
	3.	What is the locus of all points in a plane that are 3 units from a given point in that plane?
		A.	circle of radius 9 units.	B.	sphere of radius 3 units.
		C.	segment of length 3 units.	D.	circle of radius 3 units.
		Hint
	4.	Which description corresponds to the boundary below?
		A.	all lines in a plane parallel to a given line in that plane
		B.	all points in space that are 4 units from a given point
		C.	all points in a plane that are 4 units from a given segment in that plane
		D.	all points in a plane that are 4 units from a given point in that plane
		Hint
	5.	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.	two lines parallel to
		C.	a line perpendicular to	D.	a line parallel to
		Hint