Assertion: parallelepiped's edge | /r/HasProperty | same length
Facets:
Source sentences:
text: In a regular tetrahedron, all faces are the same size and shape (congruent) and all edges are the same length.
text: It can also be shown that, because the bases of a prism are congruent and parallel, each lateral edge of a prism is parallel to every other lateral edge, and that all lateral edges are the same length.