Question

3.14)
17. 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.
[CBSE 2013
18. A toy is in the form of a cone of radius 3.5 cm mounted
toto11​

Answer 1

Answer:

Explanation:surface area = S.A of Hemisphere + C.S.A of cylinder  

                   =(2πr  

2

)+2πrh

                  =2πr(r+h)  

                 =2×  

7

22

​  

×7(7+6)  

                  =2×22×13

                  =572cm  

2

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