# Solid Geometry

**Solid Geometry** is the geometry of three-dimensional space,

the kind of space we live in.

## Three Dimensions

It is called |

## Simple Shapes

Let us start with some of the simplest shapes:

## Properties

Solids have *properties* (special things about them), such as:

**volume**(think of how much water it could hold)**surface area**(think of the area you would have to paint)- how many vertices (corner points), faces and edges they have

## Polyhedra and Non-Polyhedra

There are two main types of solids, "Polyhedra", and "Non-Polyhedra":

Polyhedra *(they must have flat faces)*:

Cubes and Cuboids (Volume of a Cuboid) | |

Platonic Solids | |

Prisms | |

Pyramids |

Non-Polyhedra *(when any surface is not flat)*:

Sphere | Torus | |||

Cylinder | Cone |

- Polyhedron Models
- Volume and Area of a Sphere Calculator
- Spheroid
- Cross Sections
- Vertices, Faces, and Edges
- Cone vs Sphere vs Cylinder
- Pyramid vs Cone
- Prism vs Cylinder
- Volume of Horizontal Cylinder
- Euler's Theorem
- Pythagoras in 3D