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Mathematics for IGCSE & O level - Mensuration (Section 6 - No. 4)
A sphere has a radius of 5 cm. What is its surface area?
314.2 cm²
157.1 cm²
78.5 cm²
628.3 cm²
Paliwanag
Surface Area = 4πr² = 4 * π * 5² ≈ 314.2 cm²
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