Theorem 6.6
Parallels, Transversals, and Proportionality:
![Picture](/uploads/1/6/3/6/16360906/8360047.png?367)
All of the lines are parallel.
If three parallel lines intersect two transversals, then they divide the transversals proportionally.
Theorem 6.7
Triangle Angle Bisector:
![Picture](/uploads/1/6/3/6/16360906/9232676.png?458)
If a ray bisects an angle of a triangle, then it divides the opposite side into segments whose lengths are proportional to the lengths of the other two sides.
Chapter 6
Problem Solving and Proofs:
![Picture](/uploads/1/6/3/6/16360906/8813834.gif?184)