# Definition of Platonic Solids

The Platonic solids are five polyhedrons (solids with flat faces).

They have the following special properties:

• Every face of a Platonic solid is the same regular polygon (same size, same shape)
• They have no dents in them (they are convex)

For example, the cube is a Platonic solid. Every face of the cube is a square of the same shape.

A tetrahedron in which every face is an equilateral triangle is a Platonic solid.

The Platonic solids are named after the Greek philosopher and mathematician, Plato, who thought that they made up the classical elements of earth, water, air and fire.

### Description

The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.

### Audience

Year 1 to Year 12 students

### Learning Objectives

Learn common math terms starting with letter P

Author: Subject Coach
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