1. RIGHT
OPPOSITE
HYPOTENUSE
ADJACENT
HYPOTENUSE
OPPOSITE
ADJACENT
HYPOTENUSE
OPPOSITE
ADJACENT
ANGLE
RIGHT

2. NOW TRY #1-3 ON YOUR OWN… OPP ADJ HYP HYP ADJ OPP A. B. C HYPOTENUSE
OPPOSITE
(OPP)
ADJ
HYP
HYP
ADJ
ADJACENT
(ADJ)
OPP
NOW TRY #1-3 ON YOUR OWN…

3. ADJ
ADJ
HYP
OPP
HYP
HYP
OPP
OPP
ADJ
CHECK YOUR ANSWERS

4. SOH - CAH - TOA INE OSINE ANGENT SOH - CAH - TOA PPOSITE YPOTENUSE
DJACENT
YPOTENUSE
DJACENT
INE
OSINE
PPOSITE
ANGENT

5. SOH - CAH - TOA INE OSINE ANGENT THETA DEGREES OPP ADJ OPP HYP HYP ADJ
PPOSITE
YPOTENUSE
DJACENT
YPOTENUSE
DJACENT
INE
OSINE
PPOSITE
ANGENT

6. 10 n D 30 n E
Reference Angle 30 n F 10 n G 10 30 1 3 = H 30 10 = 3 I

7. NOW TRY #4-9 ON YOUR OWN Check your answers… 10 n m n m n 10 n 10 m m

8. 18° (d) (d) TAN OPP & ADJ Identify the reference angle.
IMPORTANT NOTE:
You will have to show this set up on the test EXACTLY as we do here. J
Identify the reference angle.
Determine which sides you know.
Decide what trig ratio you will use.
18°
Solve for d:
(d)
(d)
OPP & ADJ
TAN

9. θ SIN OPP & HYP Identify the reference angle.
IMPORTANT NOTE:
You will have to show this set up on the test EXACTLY as we do here. K
Identify the reference angle.
Determine which sides you know.
Decide what trig ratio you will use. θ
OPP & HYP
SIN

10. 42° COS ADJ & HYP Identify the reference angle.
IMPORTANT NOTE:
You will have to show this set up on the test EXACTLY as we do here. L
Identify the reference angle.
Determine which sides you know.
Decide what trig ratio you will use.
Solve for k:
42°
(9.5)
(9.5)
ADJ & HYP
The number goes first!
COS

11. NOW TRY #10-15 ON YOUR OWN
Check your answers…

13. HYPOTENUSE
OPPOSITE
HYPOTENUSE
ADJACENT
ADJACENT
OPPOSITE

14. 5 3 5 4 M 5 4 5 3 N 4 3 3 4 O
NOW DO #1-3 ON YOUR OWN

15. NOW TRY #19-21 ON YOUR OWN Check your answers… 5 4 5 4 5 4 5 3 5 3 5 3