Question

# The radius of the base of a right circular cone is 21 cm and its height is 20 cm. Find its volume.

A
3300 cm2
B
1914 cm2
C
1386 cm2
D
26720 cm2

Solution

## The correct option is B 1914 cm2 Given: Radius of the cone, r = 21 cm             Height of the cone, h = 20 cm Volume of cone = 13πr2h                           = 13×227×21×21×20                           = 22×21×20                           = 9240 cm3Mathematics

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