Question #N778
A circle has a radius of 5 centimeters. What is the circumference of the circle, in centimeters? (Use 3.14 for $\pi$.)
A. 15.7
B. 31.4
C. 78.5
D. 157
Correct Answer is: B
The circumference of a circle is given by the formula $C = 2\pi r$, where $r$ is the radius. Substituting 5 for $r$ and 3.14 for $\pi$, we get $C = 2(3.14)(5) = 31.4$.