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2. A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. Thediameter of the hemisphere is 14 cm and the total height of the vessel is 13 cm. Find theinner surface area of the vessel. |
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Answer» D of hemisphere = 14cmr = 14/2 = 7cmCSA of hemisphere = 2πr²= 2 x 22/7 x 7 x 7 = 44x7= 308cm²r = 7cmh(total) = 13cmh(cylinder) = 13 - radius of heisphere = 13-7 = 6cmCSA of Cylinder = 2πrh = 2 x 22/7 x 7 x 6= 44x6 = 264cm²Surface area of the vessel = CSA of Hemisphere + CSA of Cyclinder= 308+264 = 572cm² hit like if you find it useful |
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