A circle is inscribed in a square of side length . What is the area of the region inside the square but outside the circle? (Use )

Answer and explanation

Correct answer: C.

  1. Step 1: Area of square is .
  2. Step 2: Diameter of inscribed circle equals square side: .
  3. Step 3: Area of circle: .
  4. Step 4: Area outside circle: .
Answer
42\text{ cm}^2.
Why not the others: '' is the total square area; '' is the circle area; '' doubles the difference.

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