A company packages its 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 (as shown in figure). If the label is placed 2 cm from top and bottom, what is the area of the label?

Given: Diameter of cylindrical container = 14 cm
∴ Radius of cylindrical container (r) = d/2=14/2=7cm
Height of cylindrical container = 20 cm
Height of the label (h) = 20 – 2 – 2 = 16 cm
Curved surface area of label = 2πrh= (2)22/7x7x16 = 704 cm²
Hence, the area of the label of 704 cm²

Class 8 Maths Chapter 11 Exercise 11.3 Solution in Video

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