The radius of circle is r = 6 cm.
The formula for the circumference of circle is,
[tex]C=2\pi r[/tex]For exact circumference take pi = 3.14.
Substitute 6 for r in the formula to determine the circumference of circle.
[tex]\begin{gathered} C=2\pi\cdot6 \\ =12\pi \\ =37.68 \end{gathered}[/tex]So exact circumference of circle is 37.68 or 12 pi .
