Delhi Police Constable Exam Model Paper 5

Question : 77 of 100

Marks: +1, -0

Find the volume (in cm3) of a sphere of diameter 21 cm.

Solution:

For a sphere with radius ‘r’,
Volume of sphere

= 4/3 πr^3

Radius of sphere =

21/2 = 10.5 cm

∴ Volume of sphere

= 4/3 × 22/7 × (10.5)3= 4851 cm^3

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