Geometrymedium · Past Paper
What is the ratio of areas of two circles if the ratio of their circumferences is 3:4?
A3:4
Bsqrt(3):2
C9:16
D27:64
✓ Correct Answer: C — 9:16
Ratio of radii = Ratio of circumferences = 3:4. Ratio of areas = (3/4)^2 = 9/16.
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