Question

The formula for the circumference of a circle C equals two pi R where are is the radius and see is the circumference equation solve for our is our equals C over two pi find the radius of the circle that has a circumference of 16 pi

Answer 1

8

Explanation:

The question is basically "Find the radius of the circle that has a circumference of 16π"

The formula for circumference of a circle is given as
`C=2\pi r`

Where

C is the circumference

r is the radius

Plugging in 16π into C and solving for r gives us the radius. Shown below:

`C=2\pi r\\16\pi = 2\pi r\\r=(16\pi)/(2\pi)\\r=8`

the radius is 8