1.

2.

oppositehypotenuse

• leg

• adjacent leg

3.

Sine sin=opposite

hypotenuse

Cosine cos=adjacent

hypotenuse

Tangent tan=opposite

• adjacent

• SOH CAH - TOA

4.

• Cosecant csc=hypotenuse

opposite

• Secant sec=hypotenuse

• adjacent

• Cotangent cot=adjacent

• • • • opposite

5.

H

24

32

FG

40

sin G =csc G =

cos G =sec G =

tan G = cot G =

6.

csc=1

sin

sec=1

cos

cot=1

tan

7.

In a right triangle, angle A is acute and tan A = 5/3.

Find the value of the csc A.

Draw a triangle.

Label angle A.

Label the sides.

Find the missing side.

Answer the question.

8.

30 - 60 -90 45 - 45 -90

60

2x xx2

x

X330

x

9.

Use a trigonometric function to find the value of x.

Round to the nearest tenth if necessary.

12

X

60

10.

Inverse Sine

• If sin A = x, then sin -1x = measure of angle A.

Inverse Cosine

• If cos A = x, then cos -1x = measure of angle A.

Inverse Tangent

• If tan A = x, then tan -1x = measure of angle A.

11.

B

9 17

CA

14.4