Question

A vessel is in form of a hemispherical bow mounted by a hollow cylinder. The diameter of the hemisphere is 14 cm and the total height of the vessel is 13 cm . Find its capacity.

Answer 1

its ans is 1642.6 cu cm.

Answer 2

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Radius = 7 cm

Height of cylindrical portion = 13 - 7 = 6 cm

Curved surface area of cylindrical portion can be calculated as follows :

= 2πrh

= 2 × ²²⁄₇ × 7 × 6

= 264 cm²

Curved surface area of hemispherical portion can be calculated as follows :

= 2πr²

= 2 × ²²⁄₇ × 7 × 7

= 308 cm²

Total surface area = 308 + 264

∴ Total surface area = 572 sq.cm

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