Geometry for Real People – Points, Lines and Planes
Geometry is a study of descriptions. It is the mathematical method for describing shapes and spatial relationships. Geometry begins with a network of definitions that are then combined to make other definitions that are then used in proofs of even more definitions. In this article, I focus on the simplest definitions and relationships: those that deal with Points, Lines, and Planes.
download this article as text at http://www.overlooktutorialacademy.net/documents/G1.pdf