Question 33
Mensuration of SolidsIn the diagram above, the base diameter is 14cm while the height is 12cm. Calculate the total surface area if the cylinder has both a base and a top. [π = 22/7]
- A.836cm2
- B.528cm2
- C.308cm2
- D.154cm2
Show the answer and explanation
Answer: A (836cm2)
Explanation
r = 7cm. Curved surface = 2πrh = 2 × 22/7 × 7 × 12 = 528cm². Top and base = 2πr² = 308cm². Total 836cm².