9-Inverse Trigonometric Ratios
Kuta Software - Infinite Geometry
Name___________________________________
Inverse Trigonometric Ratios
Date________________ Period____
Find each angle measure to the nearest degree.
1) sin B = 0.4848
2) sin A = 0.5150
3) cos A = 0.7431
4) cos W = 0.6157
5) cos A = 0.5878
6) tan W = 19.0811
7) cos A = 0.4226
8) tan W = 0.5317
Find the measure of the indicated angle to the nearest degree.
9)
10)
9
27
?
?
21
38
11)
12)
14
?
42
29
40
?
13)
14)
39
27
10
11
?
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?
-1-
Worksheet by Kuta Software LLC
15)
16)
12
?
20
13
?
24
17)
18)
8
?
5
6
?
4
19)
20)
14
51
?
68
85
48
50
?
21)
22)
7
34
?
16
?
30
25
23)
24
24)
68
?
?
56
51
70
85
42
Critical thinking questions:
25) Find an angle x where sin x = cos x.
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26) Draw and label all three sides of a right
triangle that has a 40¡ã angle and a
hypotenuse of 10 cm.
-2-
Worksheet by Kuta Software LLC
Kuta Software - Infinite Geometry
Name___________________________________
Inverse Trigonometric Ratios
Date________________ Period____
Find each angle measure to the nearest degree.
1) sin B = 0.4848
2) sin A = 0.5150
29¡ã
31¡ã
3) cos A = 0.7431
4) cos W = 0.6157
42¡ã
52¡ã
5) cos A = 0.5878
6) tan W = 19.0811
54¡ã
87¡ã
7) cos A = 0.4226
8) tan W = 0.5317
65¡ã
28¡ã
Find the measure of the indicated angle to the nearest degree.
9)
10)
9
27
?
?
21
38
23¡ã
35¡ã
11)
12)
14
?
42
29
40
26¡ã
?
72¡ã
13)
14)
39
27
10
11
?
?
15¡ã
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24¡ã
-1-
Worksheet by Kuta Software LLC
15)
16)
12
?
20
13
?
24
30¡ã
49¡ã
17)
18)
8
?
5
6
?
4
41¡ã
19)
37¡ã
20)
14
51
?
68
85
48
50
?
53¡ã
16¡ã
21)
22)
7
34
?
16
?
30
25
24
28¡ã
74¡ã
23)
24)
68
?
?
56
51
70
85
42
37¡ã
37¡ã
Critical thinking questions:
25) Find an angle x where sin x = cos x.
45¡ã
26) Draw and label all three sides of a right
triangle that has a 40¡ã angle and a
hypotenuse of 10 cm.
Sides are: 10 cm, 6.4 cm, and 7.7 cm.
Create your own worksheets like this one with Infinite Geometry. Free trial available at
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-2-
Worksheet by Kuta Software LLC
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