Question

Suppose the radius of a circle is 3 units what is the circumference

Answer 1

`6\pi` or approximately
`18.85` units

Explanation:

The formula for finding the circumference of a circle is
`C=2\pi r`, where
`C` = circumference and
`r` = radius. In this case,
`r=3`, so after plugging that into
`C=2\pi r`, we get:

`C=2\pi r\\ = 2*\pi *3\\=6\pi`

Since
`\pi` is approximately
`3.1415`,
`6\pi =6*3.1415=18.849`, which rounds to
`18.85`. Therefore, the circumference of the circle is
`6\pi`, or approximately
`18.85` units. Hope this helps!