Question 16
Mensuration of SolidsThe radius and height of a solid cylinder are 8 cm and 14 cm respectively. Find, correct to two decimal places, the total surface area. [Take π = 22/7]
- A.1,106.28 cm2
- B.1,016.29 cm2
- C.1,106.29 cm2
- D.1,206.27 cm2
Show the answer and explanation
Answer: C (1,106.29 cm2)
Explanation
Total surface area = 2πr(r + h) = 2 × 22/7 × 8 × 22 = 7744/7 = 1106.2857…, which is 1,106.29 cm² to two decimal places.