Triangles have many special segments within them and special properties that come with each. This unit defines some of those special segments and works through various proofs of some of these properties.
Click on the links below for videos for extra help! Mrs. Gray's Geometry Videos are also available.
5.2-Perpendicular and Angle Bisectors
5.6- Inequalities in One Triangle
5.7- Inequalities in Two Triangles