I'm taking the SAT at the end of this week and I wanted to review some simple Geometry laws. Problem is, I can't seem to find what I remember learning last year in class. I'm trying to remember about things such as how we know that opposite interior angles are congruent (and things similar).
Does anybody know what these concepts are called so that I might Google them easier OR a website that they know of that will explain all these things to me?
-THANKS!!