Solid Geometry
| Solid Geometry is the geometry of three-dimensional space, the kind of space we live in ... |
Three Dimensions
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It is called three-dimensional, or 3D because there are three dimensions: width, depth and height.
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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)
Polyhedra and Non-Polyhedra
There are two main types of solids, "Polyhedra", and "Non-Polyhedra":
| Polyhedra : (they must have flat faces) |
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| Non-Polyhedra: (if any surface is not flat) |
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