1. Section 5.5 – Right Triangle Trigonometry

2. a b c a b c
2 Decimal Places
Nearest minute

3. a b c
OPP
ADJ
HYP a b c
OPP
ADJ
HYP
SOH CAH TOA

4. Sides in A, B, C
2 Decimal Places
Angles in D, E, F
Nearest Minute

5. a b c 10 6
STO
ALPHA A 8
STO
ALPHA B 90
STO
ALPHA F
ALPHA A + B
ENTER 10
STO
ALPHA C

6. a b c
opp
adj 10
2nd
tan ( A
ENTER B
2nd
angle 4
ENTER
STO
Alpha D
ENTER

7. a b c 10
180 -
ENTER
ALPHA D F
2nd
angle 4
ENTER

8. a b c
7.13
STO
ALPHA B
11.77 C 90 F
ALPHA C - B
ENTER
STO
ALPHA A

9. a b c
opp
hyp
2nd
sin ( B
ENTER C
2nd
angle 4
ENTER
STO
Alpha E
ENTER

10. a b c
180 -
ENTER
ALPHA E F
2nd
angle 4
ENTER

11. a b c
8.12
STO
ALPHA A 71
2ND
ANGLE 1 90 F 29 2 E
180 -
ENTER
ALPHA E F
2nd
angle 4
ENTER
STO
Alpha D
ENTER

12. a b c
opp
adj
tan
ENTER
ALPHA A D
STO
Alpha B
ENTER

13. a b c
ALPHA A + B
ENTER

14. a b c
4.71
STO
ALPHA B 38
2ND
ANGLE 1 90 F 29 2 E
180 -
ENTER
ALPHA E F
2nd
angle 4
ENTER
STO
Alpha D
ENTER

15. a b c
opp
adj
tan
ENTER
ALPHA B D
STO
Alpha A
ENTER

16. a b c
ALPHA A + B
ENTER