Well Done!
- The make geometry easier to understand from a description of their properties and they provide the foundation from which geometry is built.
- provide clear meaning by identifying classifications and specific characteristics of those figure, process or idea that need to be distinguished and defined.
- are statements that are obvious and accepted as true without proof. They provide a mechanism to establish the validity of a theorem.
- are geometric statements, ideas or conjectures that must be proved before they can be accepted. And once accepted, can be used to prove other/future theorems.