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Quick help! surface area of a spherical cap

  1. Feb 22, 2012 #1
    i just need some help on how to start the process of proving it.
    suggestions/recommendations/anything will help!
     

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  2. jcsd
  3. Feb 22, 2012 #2

    tiny-tim

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    hi emc92! :smile:

    standard technique …

    thinly slice the surface into shapes that you already know the area of …

    in this case, horizontal slices of height dz will give you sloping rings :wink:
     
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