Question #N723
A circle has a radius of 5 cm. What is the circumference of the circle in terms of $\pi$?
A. $\pi$ cm
B. 5$\pi$ cm
C. 10$\pi$ cm
D. 25$\pi$ cm
Correct Answer is: C
The circumference of a circle is given by the formula $C = 2\pi r$, where $r$ is the radius. Substituting 5 cm for $r$, we get $C = 2\pi (5) = 10\pi$ cm.