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TRIGONOMETRY REVIEW
GEOMETRY N
For questions 1-6, find the indicated trigonometric value using the right triangle pictured below. Give all
answers in simplest form.
A
30
16
B
34
C
1. sin B 
2. sin C 
3. cos B 
4. cosC 
5. tan B 
6. tan C 
7. Rounded to the nearest thousandth, sin  73  is equal to
(1) 0.956
(2) 0.292
(3) 3.271
(4) 0.602
8. Rounded to the nearest thousandth, cos 15  is equal to
(1) 0.258
(2) 0.966
(3) 0.268
(4) 0.629
9. Rounded to the nearest thousandth, tan  42  is equal to
(1) 0.669
(2) 0.743
(3) 0.900
(4) 0.445
10. If sin A 
2
, what is the measure of A to the nearest tenth of a degree?
7
(1) 16.6
(2) 73.4
(3) 15.9
(4) 0.3
11. If cos A  0.2487 , what is the measure of A to the nearest tenth of a degree?
(1) 14.4
12. If tan A 
(2) 75.6
(3) 14.0
(4) 1.3
1
, what is the measure of A to the nearest tenth of a degree?
10
(1) 5.8
(2) 84.3
(3) 5.7
(4) 0.1
13. In the diagram below of right triangle DEF, find the measure of DF to the nearest hundredth.
17
D
25°
17
25°
F
E
30
16
A
14. In the diagram below of right triangle GHI, find the measure of GH to the
nearest hundredth.
30
34 16
C
B
G
9
31°
34
B
I
C
H
15. In the diagram below of right triangle DEF, find the measure of DF to the nearest hundredth.
D
14°
F
20
E
A
16
30
30
16
16. In the diagram below of right triangle GHI, find the measure of GI to the nearest hundredth.
G
B
34
12°
I
39
H
17. In the diagram of right triangle ABC, find the measure of A to the nearest degree.
C
3
A
5
B
18. In the diagram of right triangle ABC, find the measure of A to the nearest degree.
C
7
A
12
B
19. In the diagram of right triangle ABC, find the measure of A to the nearest degree.
C
33
B
25
A
C
20. Eva is flying a kite on the beach. She holds the end of the string 4 feet above ground level and
determines the angle of elevation of the kite to be 54 . If the string is 70 feet long, how high is the kite
above the ground to the nearest foot?
21. A person standing 60 inches tall casts a shadow 87 inches long. What is the angle of elevation of the
sun to the nearest degree?