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A word in english

  1. Nov 24, 2007 #1
    Triangle has three angles but what do you call it when it has just two angles like in a sphere.
  2. jcsd
  3. Nov 24, 2007 #2


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    Only a triangle on a sphere with 2 right angles and a 180 degree internal angle would have just 2 angles. It would thne be a quarter sphere - but I don't think it has any special name.
  4. Nov 24, 2007 #3
    I try that
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