A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. the diametre of hemisphere is 14cm
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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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