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How to Calculate Un-Ordinary Circumference?

  1. May 4, 2010 #1

    Can someone please tell me how to calculate circumference when two cylinders are intersects each other marked with red color such as below image?

    Thanks in advance


  2. jcsd
  3. May 5, 2010 #2
    Probably parametrize the curve of intersection, then do it as an integral.
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