Question

(maybe) Useless question #3 (or 4)!

A circle has a radius of π. What is the circumference?

Answer 1

It answer is 2pie x radius

Answer 2

The circumference of a circle with radius
`\pi` is
`2\pi^2` units.

Explanation:

The circumference of a circle is defined by the equation
`C=2\pi r`, where
`C` stands for the circumference and
`r` stands for the radius.

Substituting the variables with the known values, we get the following:

`C=2\pi(\pi)\\C=2\pi^2`