1. Lesson 13.1 Right Triangle Trigonometry
Hypotenuse
Opposite Leg
Adjacent Leg
SOH
CAH
TOA

2. Finding Exact Values 30-60-90
30°
60° 1 2

3. Finding Exact Values 45-45-90
45° 1
45° 2

4. Example 1 Find Trigonometric Values5 3 4

5. Example 1 Find Trigonometric Values
[B] 13 5 12

6. Example 2 Use one Trig Ratio to find others

7. Example 2 Use one Trig Ratio to find others
[B] 5 3

8. Example 3 Find missing sides of Right Triangles
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[A]
SOH
CAH
TOA 8
30° x

9. Example 3 Find missing sides of Right Triangles
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[B]
60° x
SOH
CAH
TOA 12

10. Example 3 Find missing sides of Right Triangles
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[C]
SOH
CAH
TOA
45° 12 x

11. Example 3 Find missing sides of Right Triangles
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[D]
SOH
CAH
TOA
45° 10 x

12. Example 4 Solve a Triangle
Solve triangle ABC. Round lengths to the nearest tenth. C
Angles
A =
B =
C =
Sides
a =
b =
c =
35° 10 B A

13. Example 5 Solve a Triangle with Missing Angle
Solve triangle ABC. Round lengths to the nearest tenth. 5 A B C 12
Angles
A =
B =
C =
Sides
a =
b =
c =

14. Example 6 Angle of Elevation and Depression
Line of Sight
Line of Sight