Euclid:Proposition/X/5

Proposition

In the words of Euclid:

Commensurable magnitudes have to one another the ratio which a number has to a number.

(The Elements: Book $\text{X}$: Proposition $5$)

Sources

• 1926: Sir Thomas L. Heath: Euclid: The Thirteen Books of The Elements: Volume 3 (2nd ed.) ... (previous) ... (next): Book $\text{X}$. Propositions