Parallel and Perpendicular Lines
You will continue to develop your ability to write proofs as you focus on the key postulates, theorems, and constructions related to parallel and perpendicular lines. You will also review how to determine distances, midpoints, and slopes, and the equations of lines containing segments. Constructions continue to be introduced, and the ability to combine constructions will become more important. Finally, two lessons are dedicated to worldview issues, including the Geometry in History section.