###### Example2.3.17

The formula for a circle's circumference is $$C=\pi d\text{,}$$ where $$C$$ stands for circumference, $$d$$ stands for diameter, and $$\pi$$ is a constant with the value of $$3.1415926\ldots\text{.}$$ If a circle's circumference is 12$$\pi$$ ft, find this circle's diameter and radius.

Solution
in-context