Euclid devoted the last part of his famous works “Elements” to the Platonic solids. This is the first known proof that exactly five regular polyhedrons exist.

A special type of polyhedron, where all the polyhedron’s faces are regular polygon

A three-dimensional figure with flat faces, where each face is a polygon

A polygon where all edges have the same length and all interior angles are of equal size

A polyhedron composed of four triangular faces. A regular tetrahedron is a Platonic solid, made up of four equilateral triangles.

A special case of the prism, where all 6 faces are squares. One of the Platonic solids.

A polyhedron composed of eight triangular faces. A regular octahedron is a Platonic solid, made up of eight equilateral triangles.

A polyhedron with 12 faces. A regular dodecahedron is a Platonic solid, made up of 12 pentagons.

A polyhedron with 20 faces. A regular icosahedron is a Platonic solid, made up of 20 equilateral triangles.

A triangle where all edges have the same length, and all interior angles are of the same size

A regular polygon with 5 edges and 5 vertices

Mathagon

Definition

Polyhedrons

Platonic Solids

Surface Area

Volume

What Are Solid Figures?

Introduction

Solve interactive math questions related to the video "What Is a Platonic Solid?".