Mensuration Practice Test 1

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Question : 16 of 40

Marks: +1, -0

A metallic sphere of radius 2.1 m is melted and recast into a cylinder of radius 0.7 m. Find the height of the cylinder.

21.8 m
23.7 m
25.2 m
26.8 m

Solution:

Volume of the sphere = Volume of the cylinder

4/3 π (2.1)^3

=

π(0.7)^2 h

h =

4/3 × (2.1) × (2.1) × (2.1) × 1/{0.7} × 1/{0.7}

h = 25.2 m

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