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Minimum perpendicular (Posted on 2007-05-09) Difficulty: 4 of 5
Let X be a point in the interior of triangle PQR.
Let a line through X intersect rays QP and QR in points A and B respectively.
Let Y be the point on line segment AB such that |BY| = |AX|.

Prove that |AB| is a minimum if and only if AB is perpendicular to QY.

See The Solution Submitted by Bractals    
Rating: 2.6667 (3 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(3): minimum?Charlie2007-05-10 12:29:17
re(2): minimum?Dej Mar2007-05-10 11:27:35
Hints/Tipsre: minimum?JayDeeKay2007-05-10 09:03:18
Questionminimum?Dej Mar2007-05-10 07:40:57
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