triangle
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Summary
triangle is a geometric shape[1]. triangle ranks in the top 10% of geometric shape entities by monthly Wikipedia readership (23,264 views/month).[2]
Key Facts
- Follows: digon[3], line segment[4]
- Followed by: quadrilateral[5], tetrahedron[6]
- Subclass of: bicentric polygon[7], simplex[8], tritope[9], polygon[10], planar generalized triangle[11]
- Commons category: Triangles[12]
- Unicode character: 🔺[13], 🔻[14]
- Topic's main category: Category:Triangles[15]
- Has facet polytope: edge[16]
- Described by source: Brockhaus and Efron Encyclopedic Dictionary[17], Small Brockhaus and Efron Encyclopedic Dictionary[18], Encyclopædia Britannica 11th edition[19]
- Topic has template: Q25744722[20]
- Has characteristic: plane area[21], perimeter[22], triangle inequality theorem[23], area of a triangle[24]
- Has vertex figure: line segment[25]
- Different from: equilateral triangle[26], scalene triangle[27], isosceles triangle[28]
- Has part(s) of the class: edge[29], vertex[30], base[31], height[32], apex[33], apex-base pair[34]
- Union of: list of values as qualifiers[35]
- Disjoint union of: list of values as qualifiers[36]
- On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[37]
- Wikimedia outline: list of triangle topics[38]
- Maintained by WikiProject: WikiProject Mathematics[39]
Body
Influence
Things named for triangle include triangular theory of love[40], a psychological theory[41]; Triangulum[42], a constellation[43]; Triangulum Australe[44], a constellation[45]; triangle-free graph[46], a class of the graphs without certain subgraphs[47]; Triangle[48], a film[49], directed by Henrik Malyan[50]; and triangle button[51], a PlayStation game controller button[52].
Why It Matters
triangle has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[53] triangle is known by 84 alternative names across languages and contexts.[54]
Entities named for triangle include triangular theory of love[40], a psychological theory[41]; Triangulum[42], a constellation[43]; Triangulum Australe[44], a constellation[45]; triangle-free graph[46], a class of the graphs without certain subgraphs[47]; Triangle[48], a film[49], directed by Henrik Malyan[50]; and triangle button[51], a PlayStation game controller button[52].