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in Surface Areas And Volumes by (30.2k points)
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A vessel 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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Best answer

Given 

radius of hemisphere & cylindrical (r) 

\(\frac{14}2\)

= 7 cm 

Given total height of vessel = 13 cm 

∴ (h + r) = 13 cm 

Inner surface area of vessel = 2π r (h + r) 

= 2 × π × 7 (13) 

= 182π 

= 575 cm2

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