Euclid:Proposition/VI/21

Proposition

In the words of Euclid:

Figures which are similar to the same rectilineal figure are also similar to one another.

(The Elements: Book $\text{VI}$: Proposition $21$)

Sources

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