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C < a + b

  1. Nov 30, 2007 #1
    Do you know any good example (or proof) that shows that the sum of two sides is alwasys bigger than the third side in a spherical triangle.
  2. jcsd
  3. Nov 30, 2007 #2


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    spherical "law of cosines"
  4. Dec 1, 2007 #3


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    How about simply "a straight line is the shortest distance between two points"?
  5. Dec 3, 2007 #4
    Think about the converse. What is a triangle like when the third side is equal to or less then the 2 other sides put together?
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