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    Re: Bisectors and MPP - for 3 sights, equivalent to circle method
    From: Bill Noyce
    Date: 2003 May 30, 09:38 -0400

    In this context, a circle is tangent to a line when
    it just "kisses" the line -- approaches, touches, and
    then departs on the same side of the line.  The place
    where it touches is the part of the line closest to
    the circle's center, and the circle's radius at that
    point meets the line at right angles.
    
    In trigonometry, the tangent function tan(theta) is
    defined as sin(theta)/cos(theta) -- I think there's a
    way of drawing triangles and circles so the name makes
    sense with the previous definition.
    
            -- Bill
    
    -----Original Message-----
    From: Peter Fogg [mailto:ffive{at}TPG.COM.AU]
    Sent: Thursday, May 29, 2003 7:10 PM
    To: NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM
    Subject: Re: Bisectors and MPP - for 3 sights, equivalent to circle
    method
    
    
    From: "Noyce, Bill"
    > ... when I should have said
    > .  is tangent to all three LOP's
    
    Can you please explain to me what a tangent is?
    
    
    

       
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