Decahedron

A decahedron (or Zehnflächner ) is a convex polyhedron composed of ten areas.

It is known, for example, the chiral decahedron shown below, which is formed by a blunting Cubus simus and how this has a circumscribed sphere. It consists of eight irregular but axisymmetric pentagons and two squares and has 16 vertices and 24 edges.

Another example is the Fünfecksbipyramide (Johnson - body ), is composed of ten equilateral triangles. This polyhedron is produced by cutting and subsequent joining of two caps of a set at a point icosahedron. It has 7 vertices and 15 edges.

Gallery

Fünfecksbipyramide ()

Pentagonal trapezohedron - caused by extension of 10 edges of the dodecahedron.