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Trigonometry Lesson 5 "Right Triangle Trig Sin,Cos,& Tan"


Download the Complete Note Taking Guide Here
Note Taking Guide:
Unit: Trig Lesson 5: Learning Trig Ratios

Part 1: What if you don’t have a special right triangle??
Trig Ratios 

1.sinθ  

2.cosθ 

3.tanθ 


S ____ _____ C _____ _______ T ______ _______

Steps:
1. Find the reference angle.

2.Label OPPOSITE, ADJACENT, HYPOTENUSE 

3.Which two do you have? Which function is it?

4.Set up the ratio 

5.Solve it!

Practice Deciding the Function
right triangle labeled ABC
right triangle 52 degree angle
Video works this problem with step by step directions