Today in class we reviewed how to prove (using properties of parallel lines) why the sum of the measures of the angles of a triangle is 180 degrees. Remember you will see this problem on tomorrow's test so be sure to study the warm - up from class today in addition to the practice test.

Homework: Study for the Chapter 3 test using the practice test, "Building Stairs" assignment (know how to use the the transitive property in a two column proof) and the warm - up from class today.