Question

csa of sphere and hemisphere​

Answer 1

Answer:

Curved Surface Area: The area of the outer surface of the hemisphere is called the curved surface area. From the surface area of a sphere, we can easily calculate the surface area of the hemisphere. The curved surface area of a hemisphere = 2πr2 square units

Step-by-step explanation:

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Answer 2

Answer:

sphere :--4/3πr³

Step-by-step explanation:

hemisphere :--2/3 πr³