Math

The entire can needs to be painted, including the top and bottom. If the diameter of the lid (x) is 5 cm, and the height of the can (y) is 9 cm, what is the approximate total surface area that will need to be painted?

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  1. surface area
    = 2π(2.5)^2 + 2π(2.5)(9)
    = ---

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    posted by Reiny
  2. 141.37 + 39.26 = 180.63

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    posted by Lavetta

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