Mensuration · Question 24 · Medium
What is the total surface area of a solid hemisphere of radius 7 cm? (Use π = 22/7)
- 616 cm²
- 231 cm²
- 462 cm²
- 308 cm²
Answer and explanation
Answer: C. 462 cm²
Explanation: Total surface area = curved part 2πr² + flat base πr² = 3πr² = 3 × 22/7 × 49 = 462 cm².
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