1. TABLE OF CONTENTS 19. TRIGONOMETRIC RATIOS

2. TRIG RATIOS STD: MM2G2 – DEFINE AND APPLY TRIG RATIOS TO RIGHT TRIANGLES EQ: - What are the 3 trig ratios?

3. VOCABULARY Trig ratio- ratio of the lengths of two sides of a right triangle

4. 3 BASIC TRIG RATIOS Sine (sin) Cosine (cos) Tangent (tan) Sin  Cos  Tan 

5. JUST REMEMBER CHIEF… SOHCAHTOA inisinisp ppoverppover ypyp osisosis djoverdjover ypyp anisanis p ppoverppover djdj

6. AA sin A= 12/13 =.9231 cos A= 5/13 =.3846 tan A= 12/5 = 2.4 BB sin B= 5/13 =.3846 cos B= 12/13 =.9231 tan B= 5/12 =.4167 EX: FIND SIN, COS, & TAN OF  A &  B. C A B 13 12 5

7. EXAMPLE 30 60 __ 1 2 A B C sin A= ½ or.5 sin 30=.5 Find sin A and sin 30 o.

8. EXAMPLE 45 __ A B C 1 1 sin 45 o =.7071 Find sin B and sin 45 o.

9. ASSIGNMENT ASSIGNMENT PG. 159: #1-3 ALL PG 166: #2-12 EVEN ASSIGNMENT