SOLUTION: If the circumference of a circle is 12 meters, then what is its diameter?

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: If the circumference of a circle is 12 meters, then what is its diameter?      Log On


   



Question 149290: If the circumference of a circle is 12 meters, then what is its diameter?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
C=2pi%2Ar Start with the circumference of a circle formula.


12pi=2pi%2Ar Plug in C=12pi


%2812pi%29%2F%282pi%29=r Divide both sides by 2pi


r=6 Simplify.


So the radius is 6 meters and the diameter is 12 meters (simply double the radius to get the diameter).