Question

How far does a point on a rolling pin travel after one complete revolution if the rolling pin has a radius of 3.8 centimeters?

Answer 1

about
`23.9\ cm`

Explanation:

step 1

Find the circumference

we know that

The circumference of a circle is equal to

`C=2\pi r`

we have

`r=3.8\ cm`

`\pi=3.14`

substitute the values

`C=2(3.14)(3.8)=23.9\ cm`