Mensurationeasy · Past Paper
Calculate the surface area of a sphere if its radius is 0.7 cm.
A6.16 sq. cm
B0.616 sq. cm
C61.6 sq. cm
D616 sq. cm
✓ Correct Answer: A — 6.16 sq. cm
Surface Area = 4πr² = 4 * (22/7) * 0.7 * 0.7 = 4 * 22 * 0.1 * 0.7 = 6.16 sq. cm.
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