WAEC Mathematics 2016 Objective — Question 16
Question 16 of 50 from the West African Examinations Council (WAEC) Mathematics 2016 Objective paper, with the correct answer and a full explanation.
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16. The curved surface area of a cylinder, 5cm high, is 110cm². Find the radius of its base. [Take π=22/7] A. 2.6cm B. 3.5cm C. 3.6cm D. 7.0cm
- A. 2.6cm
- B. 3.5cmCorrect
- C. 3.6cm
- D. 7.0cm
Explanation
CSA=2πrh; 110=2×(22/7)×r×5 → r=3.5cm.
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