### News and Helpful Tools

Instructor: Peter Roed

Phone - (989) 773-9473

Email: Proed@Shepherdschools.net - Preferred

Office location: Odyssey MS/HS

Office Hours: After school Monday through Thursday by appointment.

Questions: Please post questions about the course in the Q&A room under the helpful tools section. If it is a personal matter, please email me. I will typically respond within one business day of receiving your message. (Business days are Monday thru Friday, not including holidays)

### Chapter 3 - Parallel and Perpendicular Lines

Chapter 3 Overview

Students will build on their knowledge of angles to prove and use properties of parallel lines. They will use these properties to prove that the sum of the measures of the angles in a triangle is 180, and to ﬁnd the formula for the sum of the angle measures in a polygon having n sides. Students will learn the relationship that different forms of linear equations have with the slopes of parallel and perpendicular lines. Finally, students will construct parallel and perpendicular lines, and quadrilaterals.

Objectives:

- You will use deductive reasoning to make conclusions about parallel and perpendicular lines.
- You will use parallel lines to learn about angle measures in triangles and other polygons.
- You will also learn ways to think about parallel and perpendicular lines in a coordinate plane.