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    Re: Using any star for a lunar
    From: Alexandre Eremenko
    Date: 2005 Apr 6, 12:48 -0500

    On Wed, 6 Apr 2005, Herbert Prinz wrote:
    
    > Or you may get a triangle in which the sum of the angles IS 180 degrees??
    
    See my last message of April 6.
    You can have 180 degrees ONLY in the case of a "degenerate" triangle.
    The one whose angles are 0, 0  and 180. (So it has no "interior").
    This is because its area should be zero if the sum of the angles is 180.
    
    Alex.
    
    
    

       
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