### 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 8 - Right Triangles and Trigonometry

Students use the Pythagorean Theorem to ﬁnd missing side lengths and apply properties of 30°-60°-90° and 45°-45°-90° triangles. The sine, cosine, and tangent trigonometric ratios are developed as applications of right triangle geometry. Students use the ratios to ﬁnd unknown lengths and angle measures in diagrams and real-world scenarios involving angles of elevation, angles of depression, and vectors.

Objectives:- You will learn the Pythagorean Theorem and its converse
- You will use the Pythagorean Theorem to find relationships in special right triangles.
- You will use similar right triangles to define the sine, cosine, and tangent ratios.
- With these ratios, you will solve height and distance problems using angles of elevation and angles of depression.