Euclid:Proposition/VI/4

Proposition

In the words of Euclid:

In equiangular triangles the sides about the equal angles are proportional, and those are corresponding sides which subtend the equal angles.

(The Elements: Book $\text{VI}$: Proposition $4$)

Sources

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