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If two solid hemispheres of same base ...

If two solid hemispheres of same base radius r are joined together along their bases, them curved surface area of the this new solid is

A

`4 pi r ^(2)`

B

`6 pi r ^(2)`

C

`3 pi r ^(2)`

D

`8 pi r ^(2)`

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The correct Answer is:
A
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OSWAL PUBLICATION-SURFACE AREAS AND VOLUMES -NCERT EXEMPLAR (EXERCISE-13.1)
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