1. Geometry Warm-Up 2/6/12
The perimeter of a square is 20 inches. Find the length of a side on the square and the diagonal.

2. 8-4: Trigonometry
Geometry
February 6, 2012

3. Trigonometry Trigonometry – study of triangle measurement
3 Common Trig Ratios
Sine (sin)
Cosine (cos)
Tangent (tan)

4. Trig Ratios
The 3 trig ratios are all in reference to a specific angle. A x z B C y

5. Example 1
Find sin L, cos L, tan L, sin N, cos N, and tan N. Express each ratio as a fraction and as a decimal.

6. “Gettin’ Triggy Wit It”