1. UNIT QUESTION: What patterns can I find in right triangles?
CCGPS Geometry
UNIT QUESTION: What patterns can I find in right triangles?
Standard: MCC9-12.G.SRT.6-8
Today’s Question:
What is a trigonometric ratio?
Standard: MCC9-12.G.SRT.6, 7

2. 45, 45, 90 30, 60, 90 SOH CAH TOA Right Triangle Trigonometry
DQ: How do you set up the different trig ratios?

3. DQ: How do you set up the different trig ratios?
The Trigonometric Functions we will be looking at
SINE
COSINE
TANGENT
DQ: How do you set up the different trig ratios?

4. DQ: How do you set up the different trig ratios?
The Trigonometric Functions
SINE
COSINE
TANGENT
DQ: How do you set up the different trig ratios?

5. DQ: How do you set up the different trig ratios?C
Hypotenuse
Hypotenuse
Opposite leg
Opposite leg A B
Adjacent leg
Adjacent leg
DQ: How do you set up the different trig ratios?

6. We need a way to remember all of these ratios…
DQ: How do you set up the different trig ratios?

7. Some
Old
Hippie
Came A
Hoppin’
Through
Our
Old Hippie
Apartment

8. Sin
SOHCAHTOA
Opp
Hyp
Cos
Adj
Hyp
Tan
Opp
Adj
Old Hippie

9. DQ: How do you set up the different trig ratios?
SOHCAHTOA 10 8 6
DQ: How do you set up the different trig ratios?

10. DQ: How do you set up the different trig ratios?
Find the sine, the cosine, and the tangent of angle M. L 3 M N 2
DQ: How do you set up the different trig ratios?

11. DQ: How do you set up the different trig ratios?
Find the sine, the cosine, and the tangent of angle L. L 3 M N 2
DQ: How do you set up the different trig ratios?

12. DQ: How do you set up the different trig ratios?
Find the values of the three trigonometric functions of . ? 4 3
DQ: How do you set up the different trig ratios?

13. Worksheet
SOH-CAH-TOA