Question

The radius of a cylinder is 3 centimeters.
The height is 7 centimeters. What is the volume of the cylinder? Use 3.14 for n.
A. 18.84 cm^3
B. 28.26 cm^3
C.
188.40 cm^3
D.
197.82 cm^3

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,
- \( h \) is the height, and
- \( \pi \) (pi) is approximately 3.14.

Given:
- radius \( r = 3 \) cm,
- height \( h = 7 \) cm.

Now substitute the values into the formula:

\[
V = 3.14 \times (3)^2 \times 7
\]
\[
V = 3.14 \times 9 \times 7
\]
\[
V = 3.14 \times 63
\]
\[
V = 197.82 \text{ cm}^3
\]

So the volume of the cylinder is \( 197.82 \text{ cm}^3 \).

The correct answer is:
**D. 197.82 cm³**.