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Re: 3D Geometery
Posted:
Apr 25, 2005 12:16 AM


Paul Sperry wrote: > In article <1114321730.329525.299960@o13g2000cwo.googlegroups.com>, > (iii) As constructed by me, l' lies "directly below" l. That is, every > point on l' is the minimum distance away from l so, of course, a point > on m and on l' is, well, on m and the minimum distance from l.
This is only true if m lies in the plane perpendicular to the plane in which both l and l' reside. In other words, l must lie parallel to the plane spanned by l' and m. I just can't seem to put this into one compact statement. Please help.
Thanks in advance.
James



