Euclid:Proposition/III/9

Proposition

In the words of Euclid:

If a point be taken within a circle, and more than two equal straight lines fall from that point onto the circle, the point taken is the center of the circle.

(The Elements: Book $\text{III}$: Proposition $9$)

Sources

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