Find the capacity of a cylindrical container with internal diameter 28 cm and height 20 cm.
Diameter = 28 cm ∴ Radius =282 cm=14 cm Height = 20 cm Volume =πr2h =227×14×14×20 ∴ Volume =12320 cm3
The lateral surface area of a right circular cylinder with base diameter 28 cm and height 20 cm is