### 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 7 Similarity

In this chapter, students will learn properties of ratios and proportions that are needed to study similarity. They will learn ways to prove triangles similar using the definition of similar polygons. Students will find proportional relationships formed by parallel segments, and by angle bisectors within triangles as well as by altitudes to the hypotenuse in right triangles.

Objectives:

- You will learn that similar polygons are polygons that have the same shape but not necessarily the same size.
- You will learn how to prove triangles similar.
- Through proving triangles similar, you will ﬁnd additional relationships within triangles.
- You will also learn how the perimeters and areas of similar ﬁgures are related.