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raku007
Posts:
5
Registered:
9/12/07


Geometry please help!!!
Posted:
Sep 12, 2007 2:54 PM


We have an angle (less than 180 degree) with it's top in point P. We also have point A inside the angle (interior). Points X and Y are laying on different legs of this angle and PX = PY.
We must prove that when the sum: AX + AY is the smallest (minimum), the equation belove is correct:
Angle XAP is equal to angle YAP.
P.S Point A is "standing still", and can be anywhere inside the triangle. We only move X and Y points
Someone has an Idea how to solve it? I am trying to solve it for month and still can't do it!



