A cone has a radius of 12 centimeters and a height of 18

centimeters. What is the volume of the cone in cubic
centimeters?
Hint: The answer has in it, so you will not calculate that part.
You will just include it at the end of the rest of your calculation.
π
2,592π cm
3
144π cm
3
864π cm
3
1,296 π cm
3

1 answer

To find the volume of the cone, we can use the formula:

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

where \( r \) is the radius and \( h \) is the height.

Given:

  • Radius \( r = 12 \) cm
  • Height \( h = 18 \) cm

Now, substituting these values into the formula:

\[ V = \frac{1}{3} \pi (12)^2 (18) \]

Calculating \( (12)^2 \):

\[ (12)^2 = 144 \]

Now substituting this back into the formula:

\[ V = \frac{1}{3} \pi (144)(18) \]

Calculating \( 144 \times 18 \):

\[ 144 \times 18 = 2592 \]

Now substitute that back in:

\[ V = \frac{1}{3} \pi (2592) \]

Calculating \( \frac{2592}{3} \):

\[ \frac{2592}{3} = 864 \]

Thus, the volume of the cone is:

\[ V = 864 \pi , \text{cm}^3 \]

So the volume of the cone is \( \boxed{864 \pi , \text{cm}^3} \).