Question 24
Mensuration of SolidsA cylinder, opened at one end, has a radius of 3.5cm and height 8cm. Calculate the total surface area. [Take π = 22/7]
- A.126.5cm2
- B.165.0cm2
- C.212.0cm2
- D.214.5cm2
Show the answer and explanation
Answer: D (214.5cm2)
Explanation
Curved surface 2πrh = 176 cm2 plus one base πr2 = 38.5 cm2: 214.5 cm2.