What is the volume of a cone with height 9 and radius 3 using pi = 3.14 (approximately)?

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Multiple Choice

What is the volume of a cone with height 9 and radius 3 using pi = 3.14 (approximately)?

Explanation:
The volume of a cone comes from V = (1/3) π r^2 h. With radius 3 and height 9, compute r^2 h first: r^2 is 9, and 9 times 9 gives 81. Multiply by π (3.14): 81 × 3.14 = 254.34. Then divide by 3: 254.34 ÷ 3 = 84.78. So the volume is 84.78 cubic units. This value is the one that matches the calculation using the cone volume formula, making it the correct choice. The other numbers would result from misplacing the division by 3 or omitting the height factor, which isn’t consistent with the formula.

The volume of a cone comes from V = (1/3) π r^2 h. With radius 3 and height 9, compute r^2 h first: r^2 is 9, and 9 times 9 gives 81. Multiply by π (3.14): 81 × 3.14 = 254.34. Then divide by 3: 254.34 ÷ 3 = 84.78. So the volume is 84.78 cubic units. This value is the one that matches the calculation using the cone volume formula, making it the correct choice. The other numbers would result from misplacing the division by 3 or omitting the height factor, which isn’t consistent with the formula.

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