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In general, a

**tetrahedron**is a polyhedron with four sides. If all faces are congruent, the**tetrahedron**is known as an isosceles**tetrahedron**. If all faces are congruent to an ...A hyperbolic version of the Euclidean

**tetrahedron**.The mean

**tetrahedron**volume V^_ is the average volume of a**tetrahedron**in**tetrahedron**picking within some given shape. As summarized in the following table, it is possible to ...The lines joining the vertices of a

**tetrahedron**to the centroids of the opposite faces are called medians. Commandino's theorem states that the four medians of a**tetrahedron**...The mean

**tetrahedron**volume of a**tetrahedron**with vertices chosen at random inside another**tetrahedron**of unit volume is given by V^_ = (13)/(720)-(pi^2)/(15015) (1) = ...The planes passing through the vertices of a

**tetrahedron**ABCD and tangent to the circumsphere at these points form another**tetrahedron**called the tangential**tetrahedron**. The ...**Tetrahedron**picking is the process of picking tetrahedra at random within a given shape in 3 or higher dimensions. The most natural definition of a random

**tetrahedron**is one ...

The compound of a truncated

**tetrahedron**and its dual, the triakis**tetrahedron**. The compound can be constructed from a truncated octahedron of unit edge length by midpoint ...A number of attractive

**tetrahedron**10-compounds can be constructed. The first (left figures) can be obtained by combining**tetrahedron**5-compounds of opposite chirality ...The Reuleaux

**tetrahedron**, sometimes also called the spherical**tetrahedron**, is the three-dimensional solid common to four spheres of equal radius placed so that the center of ......