Euclid:Proposition/XII/9

Proposition

In the words of Euclid:

In equal pyramids which have triangular bases the bases reciprocally proportional to the heights; and those pyramids in which the bases are reciprocally proportional to the heights are equal.

(The Elements: Book $\text{XII}$: )


Sources

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