Euclid:Proposition/VI/23

Proposition

In the words of Euclid:

Equiangular parallelograms have to one another the ratio compounded of the ratios of their sides.

(The Elements: Book $\text{VI}$: Proposition $23$)

Sources

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