Definition:Deltahedron
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Definition
A deltahedron is a polyhedron each of whose faces are equilateral triangles.
Also see
- Results about deltahedra can be found here.
Linguistic Note
The word deltahedron derives ultimately from Classical Greek:
- delta, the Greek letter $\Delta$, which is traditionally triangular in shape
- hedron (a form of ἕδρα), meaning base or seat.
The technically correct plural of deltahedron is deltahedra, but the word deltahedrons can often be found.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $8$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $8$