Question #N534
A circle with a diameter of 10 units is inscribed in a square. What is the area of the square, in square units?
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. Since the diameter is 10 units, the side length of the square is 10 units. The area of a square is side length squared, so the area of the square is 10^2 = 100 square units.