Question

A vessel is the form of a hollow cylinder. The diameter of the total us hemisphere 14cm and the total hieght of the vessel is13cm. Find the inner surface area of the vessel.

PlZ....tell correct one.✌️​

Answer 1

Area of a Curved surface of cylindrical portion is,

=2πrh

$= > 2 \times \frac{22}{7} \times 7 \times 6$

$= > 264 {cm}^{2}$

Area of a curved of hemispherical portion is

$= > 2\pi {r}^{2}$

$= > 2 \times \frac{22}{7} \times 7 \times 7$

$= > 308 {cm}^{2}$

∴ total surface area is = 308 + 264

$= > 572 {cm}^{2}$

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