Question

What is the radius, in centimeters, of a circle that has a circumference `16pi` centimeters?

Answer 1

The radius equals `8cm`

Explanation:

`C = 2pir`

`C = 16pi`

`16pi = 2pir`

`(16cancel(pi))/cancel(pi) = (2cancel(pi)r)/cancel(pi)`

`16 = 2r`

`16/2=(cancel2r)/cancel2`

`8 = r`