Dodecahedron

Dodecahedron is one of only five Platonic solids. This is a regular polyhedron with 20 vertices, 30 edges, and 12 faces. All faces are regular pentagons and at every vertex meet three faces and three edges.

Drag the mouse to rotate the dodecahedron. Use the right button to remove and put back individual faces.

The word dodecahedron originates with the Greek duo (2) and deca (10). The other Platonic solids are tetrahedron, octahedron, icosahedron, cube. With 12 faces, 30 edges, and 20 vertices a dodecahedron confirms to the Euler's theorem: 12 - 30 + 20 = 2.

Related material
Read more...

  • Right Pentagonal Prism
  • Square Pyramid
  • Right Triangular Prism
  • Twisted Triangular Prism
  • Tetrahedron: an Interactive Model
  • Octahedron: an Interactive Model
  • Cube: an Interactive Model
  • Icosahedron: an Interactive Model
  • Three Pyramids are Better Than Two
  • Cube In Octahedron
  • Octahedron In Cube
  • Octahedron In Tetrahedron
  • Tetrahedron In Cube
  • Icosahedron In Cube
  • Great Stellated Dodecahedron
  • Lennes' Polyhedron
  • Triangulated Dinosaur
  • Volumes of Two Pyramids
  • Császár Polyhedron 1
  • Császár Polyhedron 4
  • Szilassi Polyhedron
  • Dissection of a Square Pyramid

    • |Activities| |Contact| |Front page| |Contents| |Geometry|

    Copyright © 1996-2018 Alexander Bogomolny

    72185096