polyhedra Definition
a solid figure with many plane faces, typically more than six..
Using polyhedra: Examples
Take a moment to familiarize yourself with how "polyhedra" can be used in various situations through the following examples!
Example
The crystal was a polyhedron with twelve faces.
Example
A cube is a regular polyhedron with six square faces.
Example
The geodesic dome is a polyhedron made up of triangles.
polyhedra Synonyms and Antonyms
Phrases with polyhedra
a polyhedron in which all the faces are identical regular polygons and the same number of faces meet at each vertex.
Example
A tetrahedron, cube, octahedron, dodecahedron, and icosahedron are the only five regular polyhedra.
a polyhedron in which all the internal angles of each face are less than 180 degrees and all vertices point outwards.
Example
A cube is an example of a convex polyhedron.
the five regular polyhedra: tetrahedron, cube, octahedron, dodecahedron, and icosahedron.
Example
The Platonic solids have been studied since ancient times for their mathematical properties.
Summary: polyhedra in Brief
Polyhedra [pɒlɪˈhiːdrə] are solid figures with many plane faces, typically more than six. They can be regular or convex, and examples include a crystal with twelve faces, a cube, and a geodesic dome. The five Platonic solids are the only regular polyhedra, while a convex polyhedron has all internal angles of each face less than 180 degrees and all vertices pointing outwards.
