Our Triangles in High School Geometry (Part 1) Quick Reference Guide states all the definitions, postulates, and theorems found in a typical high school Geometry book that are associated with the following concepts:
* Classifying triangles
* The Sum of the Measures of the Angles in a Triangle Theorem and related concepts
* Congruent triangles
* Isosceles and equilateral triangles
* Inequalities in triangles
* The Pythagorean Theorem and related concepts
* Areas of triangles
Each definition, postulate, and theorem is accompanied by an example that shows exactly what the definition, postulate, or theorem tells you.
