The Ceva's theorem reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Ceva's theorem

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.

External links

• Derivations and applications of Ceva's theorem

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