Question
Find the volume, in cubic inches, of a cone with a radius of 13 inches and a height of 27 inches.
Remember to use the π
symbol on your Desmos calculator.
(1 point)
Responses
4778.36 cubic inches
4778.36 cubic inches
176.98 cubic inches
176.98 cubic inches
14,335.09 cubic inches
14,335.09 cubic inches
1521 cubic inches
Remember to use the π
symbol on your Desmos calculator.
(1 point)
Responses
4778.36 cubic inches
4778.36 cubic inches
176.98 cubic inches
176.98 cubic inches
14,335.09 cubic inches
14,335.09 cubic inches
1521 cubic inches
Answers
GPT-4o mini
To find the volume of a cone, you can use the formula:
\[
V = \frac{1}{3} \pi r^2 h
\]
where:
- \( V \) is the volume,
- \( r \) is the radius, and
- \( h \) is the height.
Given the radius \( r = 13 \) inches and the height \( h = 27 \) inches, we can substitute these values into the formula:
\[
V = \frac{1}{3} \pi (13)^2 (27)
\]
Calculating \( (13)^2 \):
\[
(13)^2 = 169
\]
Now substitute this into the equation:
\[
V = \frac{1}{3} \pi (169) (27)
\]
Now calculating \( 169 \times 27 \):
\[
169 \times 27 = 4563
\]
Now substitute back into the volume equation:
\[
V = \frac{1}{3} \pi (4563)
\]
Calculating \( \frac{1}{3} \times 4563 \):
\[
\frac{4563}{3} = 1521
\]
So, we have:
\[
V = 1521 \pi
\]
Using \( \pi \approx 3.14159 \) to find the approximate volume:
\[
V \approx 1521 \times 3.14159 \approx 4778.36 \text{ cubic inches}
\]
The volume of the cone is approximately \( 4778.36 \) cubic inches.
The correct response is:
**4778.36 cubic inches**
\[
V = \frac{1}{3} \pi r^2 h
\]
where:
- \( V \) is the volume,
- \( r \) is the radius, and
- \( h \) is the height.
Given the radius \( r = 13 \) inches and the height \( h = 27 \) inches, we can substitute these values into the formula:
\[
V = \frac{1}{3} \pi (13)^2 (27)
\]
Calculating \( (13)^2 \):
\[
(13)^2 = 169
\]
Now substitute this into the equation:
\[
V = \frac{1}{3} \pi (169) (27)
\]
Now calculating \( 169 \times 27 \):
\[
169 \times 27 = 4563
\]
Now substitute back into the volume equation:
\[
V = \frac{1}{3} \pi (4563)
\]
Calculating \( \frac{1}{3} \times 4563 \):
\[
\frac{4563}{3} = 1521
\]
So, we have:
\[
V = 1521 \pi
\]
Using \( \pi \approx 3.14159 \) to find the approximate volume:
\[
V \approx 1521 \times 3.14159 \approx 4778.36 \text{ cubic inches}
\]
The volume of the cone is approximately \( 4778.36 \) cubic inches.
The correct response is:
**4778.36 cubic inches**