Question

the volume of hemisphere is 24251/2 find its curved surface area

Answer 1

Q. The volume of hemisphere is 24251/2 find its curved surface area.


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


Curved Surface Area of hemisphere = 2πr²
= 2×22/7×10.5×10.5
= 693 sq cm
CSA of hemisphere is 693 sq cm.


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