Question

A company packages it's milk powder in cylindrical container whose base has a diameter of 14 cm and height 20 cm. Company places a label around the surface of the container. If the label is placed 2 cm from top and bottom, what is the area of the label?

Answer 1

Height of the label = 20 cm − 2 cm − 2 cm = 16 cm

Radius of the label = (14/2) cm = 7cm

Label is in the form of a cylinder having its radius and height as 7 cm and 16 cm.

Area of the label = 2π (Radius) (Height)

= { 2 x (22/7) x 7 x16 } cm2 = 704 cm2