Proposition: Prop. 12.07: Prism on Triangular Base divided into Three Equal Tetrahedra
Euclid's Formulation
Any prism having a triangular base is divided into three pyramids having triangular bases (which are) equal to one another.
 Let there be a prism whose base (is) triangle $ABC$, and opposite (plane) $DEF$.
 I say that prism $ABCDEF$ is divided into three pyramids having triangular bases (which are) equal to one another.
Modern Formulation
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Table of Contents
Proofs: 1 Corollaries: 1
Mentioned in:
Proofs: 1
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References
Adapted from (subject to copyright, with kind permission)
 Fitzpatrick, Richard: Euclid's "Elements of Geometry"
Adapted from CC BYSA 3.0 Sources:
 Prime.mover and others: "Pr∞fWiki", https://proofwiki.org/wiki/Main_Page, 2016