Area of the lateral surface of the cylinder.

The diameter of a cylinder is 7 cm and its height is 16 cm. Using the value of pi = (22)/(7) , the lateral surface area of the cylinder is

The ratio of the total surface area to the lateral surface area of a cylineder with base radius 80 cm and height 20 cm is

The lateral surface area of a cylinder is

The height of a circular cylinder is increased six times and the base area is decreased to one-ninth of its value. The factor by which of lateral surface of the cylinder increases is

The ratio of total surface area to lateral surface area of a cylinder whose radius is 20cm and height 60cm, is (a) 2:1quad (b) 3:2 (c) 4:3quad (d) 5:3