1.	A tetrahedron is a pyramid with a triangular base. Find the volume of the tetrahedron.
		A.	22 cubic inches	B.	44 cubic inches
		C.	66 cubic inches	D.	33 cubic inches
		Hint
	2.	What happens to the volume of a pyramid if the height is tripled?
		A.	The new pyramid has a volume three times the original.	B.	The new pyramid has a volume nine times the original.
		C.	There is no difference in volume.	D.	None of these is correct.
		Hint
	3.	Find the volume of the solid shown.
		A.	315 dm3	B.	945 dm3
		C.	2,835 dm3	D.	21 dm3
		Hint
	4.	The area of the base of a pyramid is 45 square feet. If its volume is 225 cubic inches, find the height of the pyramid.
		A.	5 inches	B.	15 inches
		C.	45 inches	D.	18 inches
		Hint
	5.	The area of the base of a pyramid is 85 centimeters. If its volume is 255 cubic centimeters, find the height of the pyramid.
		A.	3 centimeters	B.	12 centimeters
		C.	9 centimeters	D.	27 centimeters
		Hint