JSCE Mathematics 2022 Objective — Question 24
Question 24 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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Calculate the total surface area of a closed cylinder with base radius 3 1/2 cm and height 5cm. [Take π = 22/7]
- A. 187cm²Correct
- B. 178cm²
- C. 160.5cm²
- D. 148.5cm²
Explanation
TSA = 2πr(r + h) = 2 × 22/7 × 7/2 × 8.5 = 187cm².
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