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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? |
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A. |
6107.3 cubic inches |
B. |
16,286.0 cubic inches |
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C. |
4071.5 cubic inches |
D. |
24,429.0 cubic inches |
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Hint |
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2. |
What happens to the volume of a pyramid if the height is tripled? |
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A. |
There is no difference in volume. |
B. |
The new pyramid has a volume three times the original. |
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C. |
The new pyramid has a volume nine times the original. |
D. |
None of these is correct. |
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Hint |
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3. |
Find the volume of a pyramid 420 feet high and with a base measuring 721,000 square feet. |
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A. |
100,940,000 cubic feet |
B. |
42,394,800,000 cubic feet |
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C. |
21,197,400,000 cubic feet |
D. |
151,410,000 cubic feet |
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Hint |
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4. |
Find the volume of the solid shown. |
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A. |
21 dm3 |
B. |
2,835 dm3 |
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C. |
945 dm3 |
D. |
315 dm3 |
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Hint |
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5. |
What is the volume of a cone with a radius of 9.75 inches and a height of 11.2 inches rounded to the hundredths? |
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A. |
3,344.85 in3 |
B. |
114.35 in3 |
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C. |
933.05 in3 |
D. |
1,114.95 in3 |
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Hint |
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