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A solid cylinder of radius 7cm is 10 cm long. Find its total surface area.

A solid cylinder of radius 7cm is 10 cm long. Find its total surface area.

  • A.
    (70pi cm^2)
  • B.
    (189pi cm^2)
  • C.
    (210pi cm^2)
  • D.
    (238pi cm^2)
Correct Answer: Option D
Explanation

S = (2pi r^2 + 2pi rh)

= (2pi r(r + h))

= (2pi (7) (7 + 10))

= (238pi cm^2)

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