NCERT Solutions Class 8 Mathematics Solutions for Exercise 11.3 in Chapter 11 - Mensuration

Question 19 Exercise 11.3

Q10) 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 the figure). If the label is placed 2 cm from top and bottom, what is the area of the label.


Solution 10:

For the cyclindrical container the label will have raidus = \frac{14}{2}\ cm\ =7cm

height = 20cm -2cm -2cm


The area of label = lateral surface area

= 2\pi rh


=704\ cm^2

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