Cylinder with a given ratio of curved to total surface area

1. A.
   $539\ \text{cm}^3$
2. B.
   $616\ \text{cm}^3$
3. C.
   $1078\ \text{cm}^3$
4. D.
   $1232\ \text{cm}^3$

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1. A.
   $\pi/2$ cm
2. B.
   $\pi$ cm
3. C.
   $1/\pi$ cm
4. D.
   $2/\pi$ cm

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1. A.
   $h = r$
2. B.
   $h = 2r$
3. C.
   $2h = 3r$
4. D.
   $3h = 4r$

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