In This Chapter
- Classifying solid figures
- Relating three-dimensional figures to their two-dimensional representations with nets
- Using Euler’s formula to determine the number of faces, edges, and vertices of a polyhedron
You live in a three-dimensional world. Take a look around you. Objects are not flat—they have length, width, and height. Even a sheet of paper has three dimensions. It may not appear that way at first, but if you stack papers on top of each other, you realize that the papers are three-dimensional.
Geometry is the study of size, shape, and position. Therefore, a book on geometry isn’t complete without ...