Question #N928
A circle is inscribed in a square. The side length of the square is 10 centimeters. What is the area, in square centimeters, of the circle?
A. 25\pi
B. 50\pi
C. 100\pi
D. 400\pi
Correct Answer is: A
The diameter of the circle is equal to the side length of the square, which is 10 centimeters. The radius of the circle is half the diameter, or 5 centimeters. The area of the circle is $\pi r^2$, or $\pi (5)^2 = 25\pi$ square centimeters.