Question #N643
A circle has a radius of 5. What is the circumference of the circle?
A. 5\pi
B. 10\pi
C. 25\pi
D. 100\pi
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, we get C = 2\pi (5) = 10\pi.