Mensuration Practice Test 4

Question : 35 of 40

Marks: +1, -0

Ten circular plates each of thickness 3 cm are placed one above the other and a hemisphere of radius 6 cm is placed on the top just to cover the cylindrical solid. What is the volume of the solid so formed?

264π cubic cm
252π cubic cm
236π cubic cm
None of the above

Validate

Solution:

Volume of the cylinder =

πr^2h

Volume of the hemisphere =

2/3 πr^2

π(r^2h +2/3r^3)

π((6)^2.30+2/3 (6)^3)

= π (1080 + 144)
= 1224 π

cm^3

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