tetrahedron
four-sided polyhedron
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Summary
tetrahedron is a polyhedron[1]. tetrahedron ranks in the top 0.64% of polyhedron entities by monthly Wikipedia readership (8,255 views/month, #1 of 156).[2]
Key Facts
- Follows: trihedron[3]
- Followed by: pentahedron[4], square pyramid[5]
- Subclass of: simplex[6], pyramid[7], convex polyhedron[8], tetratope[9]
- Commons category: Tetrahedron[10]
- Topic's main category: Category:Tetrahedron[11]
- Depicted by: tetrahedral graph[12]
- Has facet polytope: triangle[13]
- Dual to: tetrahedron[14]
- Described by source: Granat Encyclopedic Dictionary[15], Encyclopædia Britannica 11th edition[16]
- Has characteristic: inradius[17], volume[18], sphericity[19]
- Has vertex figure: triangle[20]
- Different from: regular tetrahedron[21]
- Diameter: 1[22]
- Studied by: category theory[23]
- Has part(s) of the class: face[24], edge[25], vertex[26]
- Maintained by WikiProject: WikiProject Mathematics[27]
- Conway polyhedron notation: A2[28], Y3[29]
Body
Influence
Things named for tetrahedron include tetrahedrite series[30], a mineral series[31].
Why It Matters
tetrahedron has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[32] tetrahedron is known by 71 alternative names across languages and contexts.[33]
Entities named for tetrahedron include tetrahedrite series[30], a mineral series[31].