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Cevian Theorem (Posted on 2011-09-21) Difficulty: 4 of 5
Let AA', BB', CC', AB", and AC" be cevians of ΔABC with cevians AB" and AC" parallel to lines A'C' and A'B' respectively.

Prove that cevians AA', BB', and CC' are concurrent if and only if A' is the midpoint of line segment B"C".

Note: A cevian is a line segment which joins a vertex of a triangle with a point on the opposite side (or its extension).

See The Solution Submitted by Bractals    
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  Subject Author Date
SolutionSolutionHarry2011-09-21 22:13:02
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