Geometrymedium · Past Paper
If a square is inscribed in a circle of radius r, what is the area of the square?
Ar^2
B2 * r^2
C4 * r^2
Dpi * r^2
✓ Correct Answer: B — 2 * r^2
The diagonal of the square is the diameter (2r). Area of square = (diagonal^2) / 2 = (2r)^2 / 2 = 2r^2.
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