Question 14
Mensuration of SolidsThe surface area of a sphere is 792/7 cm2. Find, correct to the nearest whole number, its volume [Take π = 22/7]
- A.113 cm3
- B.131 cm3
- C.311 cm3
- D.414 cm3
Show the answer and explanation
Answer: A (113 cm3)
Explanation
4 × 22/7 × r² = 792/7 gives r² = 9, r = 3. Volume = 4/3 × 22/7 × 27 ≈ 113 cm³.