High School

What is the volume of a cylinder with a height of 18.6 inches and a base with a radius of 6.2 inches? Round your answer to the nearest tenth of a cubic inch.

Answer :

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

[tex]\[ \text{Volume} = \pi \times \text{radius}^2 \times \text{height} \][/tex]

Let's go through the steps using the given dimensions:

1. Identify the dimensions:
- The height of the cylinder is 18.6 inches.
- The radius of the base is 6.2 inches.

2. Substitute the values into the formula:

[tex]\[
\text{Volume} = \pi \times (6.2)^2 \times 18.6
\][/tex]

3. Calculate the square of the radius:

[tex]\[
6.2^2 = 38.44
\][/tex]

4. Multiply the square of the radius by the height:

[tex]\[
38.44 \times 18.6 = 714.984
\][/tex]

5. Multiply by [tex]\(\pi\)[/tex] (approximately 3.14159):

[tex]\[
\pi \times 714.984 \approx 2246.188
\][/tex]

6. Round to the nearest tenth:

[tex]\[
2246.188 \approx 2246.2
\][/tex]

So, the volume of the cylinder is approximately 2246.2 cubic inches.