Find the volume of a cone with radius of

22
22 feet and a height of
12
12 feet. Use 3.14 for π. Click Here for Help Video

The volume of the cone is
cubic feet.

1 answer

To find the volume \( V \) of a cone, you can use the formula:

\[ V = \frac{1}{3} \pi r^2 h \]

where:

  • \( r \) is the radius of the base of the cone,
  • \( h \) is the height of the cone,
  • \( \pi \) is approximately equal to 3.14.

Given:

  • \( r = 22 \) feet
  • \( h = 12 \) feet

Now, substituting the values into the formula:

\[ V = \frac{1}{3} \times 3.14 \times (22)^2 \times 12 \]

First, calculate \( (22)^2 \):

\[ (22)^2 = 484 \]

Now, plug this value back into the volume formula:

\[ V = \frac{1}{3} \times 3.14 \times 484 \times 12 \]

Next, calculate \( 484 \times 12 \):

\[ 484 \times 12 = 5808 \]

Now, substitute this into the formula:

\[ V = \frac{1}{3} \times 3.14 \times 5808 \]

Now, calculate \( 3.14 \times 5808 \):

\[ 3.14 \times 5808 \approx 18230.72 \]

Finally, divide by 3:

\[ V = \frac{18230.72}{3} \approx 6076.91 \]

Thus, the volume of the cone is approximately:

\[ \boxed{6076.91} \text{ cubic feet} \]