Question

What is the circumference of a circle with a radius of 2

Answer 1

The circumference is
`$ 4\pi $`

Explanation:

Circumference of a circle is given by :
`$ 2 \pi r$`

where
`$ r $` is the radius of the cirlce.

Here the radius is 2. Substituting in the equation we get;

Circumference =
`$ 2 * \pi \2  = 4\pi $`