Dodecahedron - Wikipedia
In geometry, a dodecahedron (from Ancient Greek δωδεκάεδρον (dōdekáedron); from δώδεκα (dṓdeka) 'twelve' and ἕδρα (hédra) 'base, seat, face') or duodecahedron[1] is any polyhedron with twelve flat faces. The most familiar dodecahedron is the regular dodecahedron with regular pentagons as faces, which is a Platonic solid.
Regular dodecahedron - Wikipedia
A regular dodecahedron or pentagonal dodecahedron is a dodecahedron composed of regular pentagonal faces, three meeting at each vertex. It is an example of Platonic solids, described as cosmic stellation by Plato in his dialogues, and it was used as part of Solar System proposed by Johannes Kepler.
Dodecahedron – Definition, Formulas, Examples & Diagrams
Aug 3, 2023 · What is a dodecahedron. Learn how to find its volume and surface area with formulas, solved examples, and diagrams.
What Was the Purpose of a Roman Dodecahedron? - History …
Jul 29, 2022 · A dodecahedron is any three-dimensional object with twelve individual flat faces. In the Roman case, these were small objects, usually measuring between 1.5 and 4.5 inches in diameter, which one could hold in their hands. They were …
Dodecahedron -- from Wolfram MathWorld
Oct 1, 2024 · The regular dodecahedron, often simply called "the" dodecahedron, is the Platonic solid composed of 20 polyhedron vertices, 30 polyhedron edges, and 12 pentagonal faces, . It is also uniform polyhedron and Wenninger model . It is …
Regular Dodecahedron -- from Wolfram MathWorld
The regular dodecahedron, often simply called "the" dodecahedron, is the Platonic solid composed of 20 polyhedron vertices, 30 polyhedron edges, and 12 pentagonal faces, 12 {5}. It is illustrated above together with a wireframe version and a net that can be used for its construction.
Spinning Dodecahedron - Math is Fun
Surface Area = 3×√ (25+10×√5) × (Edge Length) 2. It is called a dodecahedron because it is a polyhedron that has 12 faces (from Greek dodeca- meaning 12). When we have more than one dodecahedron they are called dodecahedra.
Dodecahedron - Definition, Formulas, Properties, Examples
A dodecahedron is a three-dimensional figure having twelve faces that are pentagonal in shape. All the faces are flat 2-D shapes. There are five platonic solids and dodecahedron is one of them.
Dodecahedron | Math Wiki - Fandom
A dodecahedron (Greek δωδεκάεδρον, from δώδεκα 'twelve' + εδρον 'base', 'seat' or 'face') is any polyhedron with twelve faces, but usually a regular dodecahedron is meant: a Platonic solid composed of twelve regular pentagonal faces, with three meeting at each vertex.
Dodecahedron in Geometry - Interactive Mathematics
A dodecahedron is a polyhedron with twelve flat faces, usually pentagonal. There are also three regular star dodecahedra. A small stellated dodecahedron has as its faces 12 pointy stars, seen as extending from the center of the dodecahedron outwards.