MatheAss 9.0Geometry 3D

The Tetrahedron

The Tetrahedron is a regular three-sided Pyramid. Its surface consists of four equilateral triangles and is therefore one of the five Platonic solids.

The following elements of a tetrahedron are calculated if one of them is given:

Example:

Given:
¯¯¯¯¯¯
 Circumradius rc = 1

Results:
¯¯¯¯¯¯¯
            Edge a = 1,6329932
    Apothem h1 = 1,4142136
       Altitude h2 = 1,3333333
       Inradius ri = 0,33333333
        Volume V = 0,51320024
       Surface S = 4,6188022
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