File:Triangle.Equilateral.svg · Wikimedia Commons · See Wikimedia Commons
AI overview
An equilateral triangle is a geometric shape with three sides that are all exactly the same length. It's a fundamental shape in geometry that appears frequently in nature and mathematics, making it useful for understanding basic principles of symmetry and balance.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Subclass of
- acute triangle
- Image
- Regular triangle.svg
Show 6 more facts
- different from
- isosceles triangle
- has characteristic
- perimeter
- has facet polytope
- edge
- Commons category
- Equilateral triangles
- Schläfli symbol
- {3}
- maintained by WikiProject
- WikiProject Mathematics
via Wikidata · CC0
Article · 日本語
正三角形（せいさんかくけい、英: equilateral triangle）は、正多角形である三角形である。つまり、3本の辺の長さが全て等しい三角形である。3つの内角の大きさが全て等しい三角形と定義してもよい。1つの内角は 60°（π/3 rad）である。また一つの内角が60°である二等辺三角形は正三角形となる。
Abstract from DBpedia / Wikipedia · CC BY-SA
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