# Platonic solids

### Platonic solids

This animation demonstrates the five regular three-dimensional (or Platonic) solids, the best known of which is the cube.

Matematika

Raktiniai žodžiai

Platoninė kieta medžiaga, Tetraedras, Kubas, Oktaedras, dodekaedras, Ikosaedras, Dvigubas, Pitagoras, Aristotelis, Geometrijos įrankiai, Kietoji geometrija, Matematika

Susiję elementai

### Susiję elementai

#### Császár polyhedron

The Császár polyhedron is a nonconvex polyhedron with 14 triangular faces.

#### Conic solids

This animation demonstrates various types of cones and pyramids.

#### Cube

This animation demonstrates the components (vertices, edges, diagonals and faces) of the cube, one of the Platonic solids.

#### Cylindrical solids

This animation demonstrates various types of cylindrical solids as well as their lateral surfaces.

#### Euler's polyhedron formula

The theorem formulated by Leonhard Euler describes one of the basic properties of convex polyhedra.

#### Grouping of cuboids

This animation demonstrates various types of cuboids through everyday objects.

#### Grouping of solids

This animation demonstrates various groups of solids through examples.

#### Grouping of solids 1

This animation demonstrates various groups of solids through examples.

#### Grouping of solids 2

This animation demonstrates various groups of solids through examples.

#### Grouping of solids 3

This animation demonstrates various groups of solids through examples.

#### Grouping of solids 4

This animation demonstrates various groups of solids through examples.

#### Net of a cube (exercises)

Not all nets consisting of 6 congruent squares are foldable into cubes.

#### Perimeter, area, surface area and volume

This animation presents the formulas to calculate the perimeter and area of shapes as well as the surface area and volume of solids.

#### Regular square pyramid

A regular square pyramid is a right pyramid with a square base and four triangular faces.

#### Szilassi polyhedron

This special concave polyhedron was named after a Hungarian mathematician.

#### Sphere

A sphere is the set of points which are all within the same distance from a given point in space.

#### Volume of a tetrahedron

To calculate the volume of a tetrahedron we start by calculating the volume of a prism.

#### Fullerene (C₆₀)

A crystalline allotrope of carbon which was discovered at the end of the 1980s.