39. If two solid hemispheres of same radius are joined together along their bases. The surface area of this new solid is
Answers
Answered by
2
Answer:
The surface area of this new solid is same
Answered by
0
Answer:
We know that,
Curved surface area of a hemisphere =2πr ^2
So, when two solids hemispheres of same base radius are joined together along their bases, then
Curved surface area of newly formed solid sphere=2×2πr ^2
=4πr ^2
Hence, A is the correct option.
Step-by-step explanation:
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