Question #N17

A circle with a radius of 5 centimeters is inscribed in a square. What is the area of the square, in square centimeters?
A. 25
B. 50
C. 100
D. 200

Correct Answer is: C

The diameter of the circle is equal to the side length of the square. The diameter of the circle is 2 times the radius, or 10 centimeters. Therefore, the area of the square is 10^2 = 100 square centimeters.