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A vassel is in the from of a hemispherical bowl surmounted by a hollow cylinder of same diameter the diameter of the hemispherical bowl is 14cm and the total height of the vessel is 13cm find the total surface area of the vessel |
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Answer» Answer: 1144 cm SQUARE Step-by-step explanation: Let the radius and height of cylinder be r cm and h cm respectively. Diameter of the hemispherical bowl = 14 cm ∴ Radius of the hemispherical bowl = Radius of cylinder = r = 14/2 = 7cm Total height of the vessel = 13 cm. ∴ Height of the cylinder, h=13 cm - 7 cm = 6 cm Total SURFACE area of the vessel= 2(CSA of cylinder + CSA of HEMISPHERE) = 2(2πrh+2r square) = 4πr(r+h ) = 4× 22/7 ×7×(6+7)cm2 = 1144cm2
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