Question #N393
A circle has a radius of 5 units. What is the area of the circle, in square units?
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 of the circle. Substituting r = 5 into the formula gives $A = \pi (5)^2 = 25\pi$.