Assertion: polyhedron's face | /r/CapableOf | meet at right angles
Facets:
Source sentences:
text: An orthogonal polyhedron is one all of whose faces meet at right angles, and all of whose edges are parallel to axes of a Cartesian coordinate system.
text: An orthogonal polyhedron is one all of whose faces meet at right angles, and all of whose edges are parallel to axes of a Cartesian coordinate system.