1. Trigonometry Ratios in Right Triangles
8-3
Trigonometry
Ratios in Right Triangles
Objectives:
To find trigonometric ratios using right triangles.
To solve problems using trigonometric ratios.

2. Vocabulary Trigonometry Trigonometric Ratio Opposite Side
Adjacent Side
Sine
Cosine
Tangent

3. Algebra Review

4. Usefulness of trigonometry?

5. Vocabulary

6. Vocabulary
Sine – The ratio of the length of the opposite side to the length of the hypotenuse.
Cosine – The ratio of the length of the adjacent side to the length of the hypotenuse.
Tangent – The ratio of the length of the opposite side to the length of the adjacent side in a right triangle.

7. Trigonometric Ratios

8. SOHCAHTOA
The acronym SOHCAHTOA is your best friend for trigonometry. Write this down. This means you. Seriously!!
SOHCAHTOA

9. Examples

10. In Class Examples

11. Homework
8-3 Worksheet