Volumes Practice Test 4

Question : 6 of 16

Marks: +1, -0

The diameter of the iron ball used for the shot-put game is 14 cm. It is melted and then a solid cylinder of height

2 1/3

cm is made. What will be the diameter of the base of the cylinder?

Solution:

Here,

πr^2 : 7/3

4/3 π 7^3

⇒

r^2

{4×7×7×7}/{7}

∴ r = 14 cm
Hence, diameter of the cylinder = 2r = 2 × 14 = 28 cm

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