Question #N230
A circle with radius 5 is inscribed in a square. What is the area of the square?
A. 25
B. 50
C. 100
D. 200
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Correct Answer is: C
The diameter of the circle is equal to the side length of the square. The diameter is twice the radius, so the side length of the square is 10. The area of the square is (side length)^2 = 10^2 = 100.