1. Right Triangle TrigonometryB
hypotenuse
opposite leg C A
adjacent leg
Right Triangle Trig Functions
Sine
Cosine

2. Right Triangle TrigonometryB
hypotenuse
opposite leg C A
adjacent leg
Right Triangle Trig Functions
Tangent
Cosecant

3. Right Triangle TrigonometryB
hypotenuse
opposite leg C A
adjacent leg
Right Triangle Trig Functions
Secant
Cotangent

4. Ex 1: Find the six trigonometric functions for the
indicated angle. A θ h
h = 5 4 C B 3
sin θ = cos θ = tan θ =
csc θ = sec θ = cot θ =

5. Ex 2: Find the exact values of the six trigonometric functions of the indicated angle.
sin θ =
cos θ =
tan θ =
csc θ = sec θ = cot θ = 3 θ 2

6. Ex 3: Find the exact value six trigonometric functions of the angle 45°.
sin 45° =
cos 45° =
tan 45° = csc 45° =
sec 45° = cot 45° = x x

7. Ex 4: Find the exact value six trigonometric functions of the angle 60°.
sin 60° =
cos 60° =
tan 60° = csc 60° =
sec 60° = cot 60° = 2x 2x θ x 2x

8. Suggested Assignment:
Section 4.3
pg 274 – 275
#1 – 26, 47 – 52