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3 October, 09:32

A right cylinder has a radius of 3 and a height of 12. what is its surface area?

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Answers (2)
  1. 3 October, 09:36
    0
    Surface area of cylinder = 282.6 square units.

    Step-by-step explanation:

    Given : A right cylinder has a radius of 3 and a height of 12.

    To find : what is its surface area

    Solution : We have given that radius = 3

    Height = 12.

    Surface area of cylinder = 2πr (r + h)

    Surface area of cylinder = 2 * 3.14 * 3 (3 + 12)

    = 18.84 (15)

    Surface area of cylinder = 282.6 square units.

    Therefore, Surface area of cylinder = 282.6 square units.
  2. 3 October, 09:42
    0
    The surface area is 90pi
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