Question

A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. The
diameter of the hemisphere is 14 and the total height of the vessel is 13 . Find
the inner surface area of the vessel.

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Answer 2

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Asked on January 17, 2020 by

Mudali Tulasi

A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. The diameter of the hemisphere is 14 cm and the total height of the vessel is 13 cm. Find the inner surface area of the vessel.

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ANSWER

Radius=7cm

Height of the cylindrical portion13−7=6cm.

Area of a Curved surface of cylindrical portion is,

=2πrh

=2×

7

22

×7×6

=264cm

2

Area of a curved of hemispherical portion is

=2πr

2

=2×

7

22

×7×7

=308cm

2

∴ total surface area is =308+264=572cm

2

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