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Question

The inner diameter of a cylindrical container is 7 cm and its top is of the shape of a hemisphere. If the shape of a hemisphere. If the height of the container is 16 cm, then find the actual capacity of the container. Use π=227

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Solution

Radius, r=72=3.5 cm
Height of cylinder h=163.5=12.5 cm

So,
Volume of cylinder =πr2h
=227×(3.5)2×12.5
=481.25 cm3
And,
Hemisphere volume =23×πr3
=23×227×(3.5)2
=89.79 cm3

Total capacity =481.25+89.79
=571.04 cm3


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