1.
The radius of a cone is 6 inches. The height is 12 inches. If the radius of the cone is tripled and the height remains the same, what is the volume of the new cone?
A.
24,429.0 cubic inches
B.
4071.5 cubic inches
C.
16,286.0 cubic inches
D.
6107.3 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.
There is no difference in volume.
C.
None of these is correct.
D.
The new pyramid has a volume nine times the original.
Hint
3.
What is the volume of a cone with a diameter of 21
cm and a height of 33 cm? Round to the nearest tenth.
A.
363.1 cm
3
B.
3,993.6 cm
3
C.
371.5 cm
3
D.
11,980.7 cm
3
Hint
4.
What is the volume of a cone that is 2 inches across and 4 inches tall rounded to the tenths?
A.
8.4 in
3
B.
12.6 in
3
C.
16.8 in
3
D.
4.2 in
3
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.
9 centimeters
B.
27 centimeters
C.
12 centimeters
D.
3 centimeters
Hint