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 point)

Responses

3,260.11 in.3
3,260.11 inches cubed

115.55 in.3
115.55 inches cubed

407.51 in.3
407.51 inches cubed

1,222.54 in.3
1,222.54 in cubed

1 answer

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

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

where:

  • \( V \) is the volume,
  • \( \pi \) is approximately 3.14,
  • \( r \) is the radius of the sphere.

First, we need to find the radius. The diameter of the basketball is given as 9.2 inches, so the radius \( r \) is half of the diameter:

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

Now, we can substitute the radius into the volume formula:

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

Calculating \( (4.6)^3 \):

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

Now substituting this back into the volume formula:

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

Calculating \( \frac{4}{3} \times 3.14 \):

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

Now multiply this by \( 97.336 \):

\[ V \approx 4.18667 \times 97.336 \approx 407.506 \]

Rounding to the nearest hundredth gives:

\[ V \approx 407.51 \]

Thus, the volume of the basketball is approximately:

\[ \boxed{407.51 \text{ in}^3} \]