Math

How do you calculate the surface area of a cylinder when the diameter is 15cm and the height it 10cm

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asked by Annie
  1. http://www.math.com/tables/geometry/surfareas.htm

  2. I went on that website but I don't understand it

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    posted by Annie
  3. Surface Area of a Cylinder = 2 pi r 2 + 2 pi r h

    SA = 2(3.14 * 7.5^2) + 2(3.14 * 7.5 * 10)

    SA = 353.25 + 471.0

    SA = _______ square cm

  4. will it be 824.25

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    posted by Annie
  5. Yes.

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