Question #N627
A circle has a radius of 5. What is the area of the circle? (Express your answer in terms of $\pi$.)
A. $5\pi$
B. $10\pi$
C. $25\pi$
D. $100\pi$
Correct Answer is: C
The area of a circle is given by the formula $A = \pi r^2$, where $r$ is the radius. Substituting 5 for $r$ gives $A = \pi (5^2) = 25\pi$.