Mensurationmedium · Past Paper
The volume of two spheres are in the ratio 64:27. Find the ratio of their surface areas.
A4:3
B16:9
C8:3
D64:27
✓ Correct Answer: B — 16:9
V1/V2 = (r1/r2)³ = 64/27 => r1/r2 = 4/3. Area ratio = (r1/r2)² = (4/3)² = 16/9.
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