NCERT Solutions for Class 9 Maths Chapter 13
Important NCERT Questions
Surface Areas and Volumes
NCERT Books for Session 2022-2023
CBSE Board, UP Board and Other state Boards
EXERCISE 13.8
Page No:236
Questions No:5
How many litres of milk can a hemispherical bowl of diameter 10.5 cm hold?
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Radius of hemispherical bowl r = 10.5/2 = 5.25 cm
Therefore, the volume of hemispherical bowl = 2/3πr³
=2/3 × 22/7 × 5.25 × 5.25 × = 2 × 22 × 0.25 × 5.25 × 5.25 = 303 cm³ (Approx.)
= 303/1000Litre [∵ 1 cm³ = 1/1000 litre]
= 0.303 litre
Hence, the hemispherical bowl holds 0.303 litres of milk.