Question

2. The volume of a hemisphere is 2425.5 cmº. Find its curved surface area.​

Answer 1

Answer:

Solution:-

Given : Volume of hemisphere = 2425 1/2 cu cm or 2425.5 cu cm.

Volume of hemisphere = 2/3πr³

2425.5 = 2/3*22/7*r³

r³ = (2425.5*21)/44

r³ = 50935.5/44

r³ = 1157.625

r = 10.5 cm

Now, 

Curved Surface Area of hemisphere = 2πr²

= 2*22/7*10.5*10.5

= 693 sq cm

CSA of hemisphere is 693 sq cm.

Answer.