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Q: The total surface area of a cylinder is 64π square unit, where the height of the cylinder is equal to its radius. If the height is doubled and the radius is halved . The total surface area of the cylinder will be…… square unit.
  • A. 48π
  • B. 54π
  • C. 40π
  • D. 64π
Correct Answer: Option C -
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Explanations:

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