### 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 4 - Congruent Triangles

Chapter 4 Overview

Students will use their knowledge of corresponding parts of congruent polygons to study and apply postulates and theorems related to triangle congruence. These include SSS, SAS, ASA, AAS, HL, and the Isosceles Triangle Theorem. Throughout this chapter, students complete progressively more complex proofs. Their work in Chapter 4 will apply to all subsequent proofs in this course.

Objectives

- You will learn the meaning of congruent polygons.
- You will learn how to prove two triangles congruent by ﬁve different methods.
- By learning how to prove triangles congruent, you will discover properties of an isosceles triangle.
- You will also learn how to draw other conclusions, once two triangles have been proved congruent.