Question

What is the approximate volume of the cylinder use 3.14 for pi
Height 9cm width 4cm

Answer 1

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

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

where:
- \( V \) is the volume,
- \( r \) is the radius of the base, and
- \( h \) is the height of the cylinder.

Given:
- Height \( h = 9 \) cm
- Width (diameter) = 4 cm, so the radius \( r = \frac{4}{2} = 2 \) cm

Now, substituting the values into the volume formula:

\[
V = 3.14 \times (2 \, \text{cm})^2 \times 9 \, \text{cm
}
\]
\[
V = 3.14 \times 4 \, \text{cm}^2 \times 9 \, \text{cm
}
\]
\[
V = 3.14 \times 36 \, \text{cm}^3
\]
\[
V \approx 113.04 \, \text{cm}^3
\]

Therefore, the approximate volume of the cylinder is **113.04 cm³**.