Question

The radius of the circle above is 3 in. What is the circumference of the circle? (Use n = 3.14.)






























9.42 in





28.26 in





18.84 in





56.52 in

Answer 1

Help! :'(

Answer 2

The circumference formula of a circle is \[C=2\Pi r\]
So just plug in the numbers and multiply.

Answer 3

The radius is 3 inches. So that can be plugged in for r in the formula. N would be Pi. So you plug 3.14 in for pi. So now we have \[2\times3.14\times3\]What do you get when you do that math @Sunnyo

Answer 4

18.84

Answer 5

You got it! Great job :D

Answer 6

Thank you!

Answer 7

You're welcome. Glad to help.