Question

find the volume of a cylinder use 3.14 for pi
radius=3
height=5

Answer 1

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

\[
V = \pi r^2 h
\]

Where:
- \( V \) is the volume,
- \( r \) is the radius,
- \( h \) is the height,
- \( \pi \) is approximately 3.14.

Given:
- Radius \( r = 3 \)
- Height \( h = 5 \)

Now plug in the values:

\[
V = 3.14 \times (3)^2 \times 5
\]

Calculating \( (3)^2 \):

\[
(3)^2 = 9
\]

Now substituting that back into the volume formula:

\[
V = 3.14 \times 9 \times 5
\]

Now calculate:

\[
3.14 \times 9 = 28.26
\]

Then:

\[
28.26 \times 5 = 141.3
\]

Thus, the volume of the cylinder is:

\[
\boxed{141.3}
\]