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Question

The curved surface area of a right circular cylinder of base radius r is obtained by multiplying its volume by  :


Options:
A .  2r
B .  `2/r`
C .  `2r^2`
D .  `2/r^2`
Answer: Option B

Curved surface area =` 2 pi r h ` = `(pi r^2 h) 2/r`

 =`(Volume xx 2/r)`




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