https://en.wikipedia.org/wiki/Tetrahedron

In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. ... The following Cartesian coordinates define the four vertices of a tetrahedron with edge length 2, centered at the origin, and two ...

https://www.mathsisfun.com/geometry/vertices-faces-edges.html

Edges This Tetrahedron Has 6 Edges. For a polyhedron an edge is a line segment ... cube. Try it on the cube: A cube has 6 Faces, 8 Vertices, and 12 Edges,. so:.

http://mathworld.wolfram.com/RegularTetrahedron.html

with four polyhedron vertices, six polyhedron edges, and four equivalent ... of the tetrahedron is simply four times the area of a single equilateral triangle face ...

https://artofproblemsolving.com/wiki/index.php/Platonic_solid

The tetrahedron has four faces, all of which are triangles. It also has four vertices and six edges. Three faces meet at each vertex. The cube has six faces, all of ...

http://whistleralley.com/polyhedra/tetrahedron.htm

Nov 2, 2011 ... The tetrahedron has 4 faces, 4 vertices, and 6 edges. Each face is an ... Multiply that by the number of faces to get the total surface area, A.

https://revisionmaths.com/gcse-maths/geometry-and-measures/3d-shapes

A 3D shape is described by its edges, faces, and vertices (vertex is the ... This video and images below explain the faces, vertices and edges of ... Tetrahedron.

http://www.technologyuk.net/mathematics/geometry/tetrahedron.shtml

It has four (4) faces (the word tetra has its origins in the Greek language, and means four), six (6) edges, and four (4) vertices. What distinguishes the tetrahedron ...

https://mathbitsnotebook.com/Geometry/3DShapes/3DPlatonicSolids.html

It has 4 vertices, 6 edges, and 4 faces. Each face is an equilateral triangle. Of the Platonic solids, the tetrahedron has the smallest volume for its surface and is ...

https://www.khanacademy.org/math/basic-geo/basic-geometry-shapes/basic-geo-geometric-solids/v/counting-faces-and-edges-of-3d-shapes

Sal identifies the faces and edges on various 3D shapes. ... what shape has 4 identical faces 4 vertices and 6 edges. Reply. Button opens signup modal.

https://www.quora.com/How-many-sides-faces-and-vertices-does-a-tetrahedron-have

Sides and faces are the same regarding polyhedra. You probably mean 'sides, edges and vertices'. Here it is, you can count them.