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The internal and external radii of a hol...

The internal and external radii of a hollow hemispherical bowl are `r_(1) and r_(2)` respectively. The curved surfacea rea of the bowl is

A

`2pi(r_(1)^(2)+r_(2)^(2))`

B

`2pi(r_(1)^(2)+r_(2)^(2))`

C

`2pi(r_(2)^(2)-r_(1)^(2))`

D

`pi(r_(2)^(2)-r_(1)^(2))`.

Text Solution

Verified by Experts

The correct Answer is:
C
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