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If two cylinder one of radius 4 cm and h...

If two cylinder one of radius `4` cm and height `4` cm and other of radius `4` cm and height `6` cm is joined along axis such that new cylinder is formed then curved surface area of new cylinder is (in `cm^2`)

A

`32 pi`

B

`40 pi`

C

`48 pi`

D

`80 pi`

लिखित उत्तर

Verified by Experts

The correct Answer is:
D
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