Tetrahedron - Wikipedia
网页In geometry, a tetrahedron (pl.: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertices. The tetrahedron is the simplest of all the ordinary convex polyhedra. [1]
TETRAHEDRON中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页The sliver is the only type of small volume tetrahedron whose circumradius over shortest edge length ratio does not grow with decreasing volume. We do not consider tetrahedra …
Tetrahedron - Definition, Formulas, Examples, and Diagrams
网页2024年6月8日 · A regular tetrahedron is a three-dimensional shape with four faces, six edges, and four vertices. All the faces are equilateral triangles. one of its faces is its base. The other three faces form the pyramid. Thus a tetrahedron is known as a …
Tetrahedron - Wikiwand
网页In geometry, a tetrahedron (pl.: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertices. The tetrahedron is the simplest of all the ordinary convex polyhedra .
Regular Tetrahedron -- from Wolfram MathWorld
网页The regular tetrahedron, often simply called "the" tetrahedron, is the Platonic solid with four polyhedron vertices, six polyhedron edges, and four equivalent equilateral triangular faces, . It is illustrated above together with a wireframe version and a …
TETRAHEDRA在剑桥英语词典中的解释及翻译 - Cambridge …
网页TETRAHEDRA的意思、解释及翻译：1. plural of tetrahedron specialized 2. plural of tetrahedron specialized。. 了解更多。.
Tetrahedron - Meaning, Properties, Formulas | Tetrahedron …
网页A tetrahedron is a platonic solid which has 4 triangular faces, 6 edges, and 4 corners. It is also referred to as a ' Triangular Pyramid ' because the base of a tetrahedron is a triangle. A tetrahedron is different from a square pyramid, which has a square base.
Tetrahedron - Polytope Wiki
网页The tetrahedron or tet, also sometimes called the 3-simplex, is the simplest possible non-degenerate polyhedron. The full symmetry version has 4 equilateral triangles as faces, joining 3 to a vertex, and is one of the 5 Platonic solids. It is the 3-dimensional simplex.
Tetrahedron -- from Wolfram MathWorld
网页If all faces are congruent, the tetrahedron is known as an isosceles tetrahedron. If all faces are congruent to an equilateral triangle, then the tetrahedron is known as a regular tetrahedron (although the term "tetrahedron" without further qualification is often used to mean "regular tetrahedron").
Tetrahedron - Math.net
网页What is a tetrahedron. A tetrahedron is a three-dimensional (3D) figure made up of 4 triangular faces. It is also known as a triangular pyramid. If all of the triangles that form the tetrahedron are congruent equilateral triangles, the tetrahedron is referred to as a …