Question

A circle has a radius of 6 cm. What is its circumference?

Answer 1

`37.699cm`

Explanation:

The circumference of a circle can be obtained by using the equation below:

where the mathematical constant, `pi`, has a value of approximately 3.14 and `r` represents the radius of the circle.

All we have to do is multiply the given radius by two and multiply that value by `pi` to determine C:

`"Circumference" = 2xx6cm xx pi`
`"Circumference" = 12cmxxpi`
`"Circumference" = 37.699cm`