| 释义 |
Diagonal (Polyhedron)A Line Segment connecting two nonadjacent sides of a Polyhedron. The only simple Polyhedron with nodiagonals is the Tetrahedron. The only known Toroidal Polyhedron with no diagonals is the CsászárPolyhedron. See also Diagonal (Polygon), Euler Brick, Polyhedron, Space Diagonal
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