A square with a side length of 8 is inscribed in a circle. What is the area of the circle?
✓ Correct Answer: Option B
The diagonal of the inscribed square is the diameter of the circle. For a square with side 8, the diagonal is 8√2. So, the diameter is 8√2, and the radius is 4√2. The area of the circle is πr^2 = π(4√2)^2 = π(16*2) = 32π.
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This 3-level GRE Exam Prep question from the Quantitative Reasoning topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.
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