Euclid:Proposition/VI/19

Proposition

In the words of Euclid:

Similar triangles are to one another in the duplicate ratio of the corresponding sides.

(The Elements: Book $\text{VI}$: )


Sources

  • 1926: Sir Thomas L. Heath: Euclid: The Thirteen Books of The Elements: Volume 2 (2nd ed.) ... (previous) ... (next): Book $\text{VI}$. Propositions
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