The volume of a solid right circular cylinder of height 8 cm is 392π cm3. Its curved surface area (in cm2) is:

Answer: Option A

h = 8 cm
V = 392π cm³
πr²h = 392π
πr² × 8 = 392π
r² = 49
r = 7
Curved surface area = 2πrh
= 2 × π × 7 × 8
= 112π cm²