¶ Tetrahedron
← Tetrahedron: Coordinate Symmetry | Tetrahedron →
Cross Reference
Coordinate Symmetry:
"The tetrahedron is uniquely indestructible. A plane passed through the figure parallel to any one face does not alter its regularity.
"When an equilateral triangle is divided into four identical smaller triangles it will fold into a tetrahedron.
“When any arbitrary triangle is divided into four congruent triangles by bisecting its edges and joining them with new edges, it will also fold into a tetrahedron-- an irregular tetrahedron bounded by four congruent faces.”
¶ Cross-References
- Illustration #19
¶ Citations
- SYNERGETICS ILLUSTRATION, caption #19. May’67
