Use the formula for the volume of a sphere to find the volume of a basketball that has a diameter of 9.2 inches. Use 3.14 as an approximation for pi and round your answer to the nearest hundredth, if necessary. 1,222.54 in.3

1,222.54 in cubed

115.55 in.3
115.55 inches cubed

407.51 in.3
407.51 inches cubed

3,260.11 in.3

1 answer

To find the volume of a basketball using the formula for the volume of a sphere, you can use the formula:

\[ V = \frac{4}{3} \pi r^3 \]

where \( V \) is the volume and \( r \) is the radius of the sphere.

First, we need to determine the radius of the basketball. Since the diameter is 9.2 inches, the radius is:

\[ r = \frac{\text{diameter}}{2} = \frac{9.2}{2} = 4.6 \text{ inches} \]

Next, we can plug the radius into the volume formula. Using \( \pi \approx 3.14 \):

\[ V = \frac{4}{3} \times 3.14 \times (4.6)^3 \]

Calculating \( (4.6)^3 \):

\[ (4.6)^3 = 4.6 \times 4.6 \times 4.6 = 97.336 \]

Now, substitute this back into the volume formula:

\[ V = \frac{4}{3} \times 3.14 \times 97.336 \]

Now, calculate \( \frac{4}{3} \times 3.14 \):

\[ \frac{4}{3} \times 3.14 \approx 4.18667 \]

Now multiply by \( 97.336 \):

\[ V \approx 4.18667 \times 97.336 \approx 407.51 \]

Thus, the volume of the basketball is approximately \( 407.51 \) cubic inches.

Finally, rounding to the nearest hundredth, the volume is:

\[ \text{Volume} \approx 407.51 \text{ in}^3 \]

So the correct answer is:

407.51 in.³

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