Question 14
Mensuration of SolidsA cylinder of base radius 4cm is open at one end. If the ratio of the area of its base to that of its curved surface is 1:4, calculate the height of the cylinder.
- A.1cm
- B.2cm
- C.4cm
- D.8cm
- E.16cm
Show the answer and explanation
Answer: D (8cm)
Explanation
πr2 : 2πrh = r : 2h = 1 : 4, so 2h = 4r and h = 2r = 8cm.