Ceva's Theorem
From Wacklepedia - The Free Encyclopedia
Ceva's Theorem is a very useful theorem in elementary
geometry. It states that in a triangle ABC, three lines AD, BE and CF joining vertices with the opposite sides intersect at a single point if and only if AF/FB ? BD/DC ? CE/EA = 1
It was first proved by Giovanni Ceva and is very popular among schoolchildren all over the world.
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