Question

The diameter of Joe's car wheel is 18 inches. What is the circumference to the nearest inch?

Answer 1

The circumference of the wheel is, to the nearest inch, `57` inches.

Explanation:

To solve this problem, we need to recall the formula for the circumference of a circle:

`C=2pir=pid`

Now, we substitute `18` inches for the diameter in the formula:

`C=pi(18)`

We can then multiply `18` by `pi` and round the answer to the nearest inch:

`18pi~~56.54~~57` inches.