Question

A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. The radius of the hemisphere is 6 cm and the total height of the vessel is 19 cm. Find the capacity of the vessel.

Answer 1

Answer:

Step-by-step explanation:

Given:

Radius of hemisphere and cylinder is r=7 cm

Height of cylinder is h=13 cm

Surface area of hemisphere of radius r is given by S  

1

​  

=2πr  

2

 

Surface area of  curved surface of a cylinder of radius r and height h  is S  

2

​  

=2πrh

Total surface area is S=2πr  

2

+2πrh

S=2π×7  

2

+2π×7×13

S=280π cm  

2