Geometry - Trig Functions Practice 8-3 Prt2
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Geometry
Name___________________________________
Trig functions practice 8-3
Date________________ Period____
Find the measure of each angle indicated. Round to the nearest tenth. 1)
2)
B
A
θ
θ
10
10.8
C
3)
A
10
C
4)
B
B
10
A 11.2
θ
3
θ 7
B
C C
5)
A
5
6)
B
θ
A
θ
C
B
7
6
7)
11.1
C
A
3.7
8)
B θ
12
C
8
4
3
A
C
9)
B
θ
A
10)
B
B
11.7 5
7.4
θ
A
C
θ
A
11)
12)
B
C
9
C 8.8
7
θ
11
A
B
θ
C
5
13)
A
14)
A
B θ 9
8.8
θ
B
15)
C 6
A
6
C
16)
B θ
A θ 3
6
2
C
B
A
-1-
11
C
17)
18)
C 12
C
10
5
θ
θ
B
A
A
19)
20)
C
C
8
6
B
7
9
8
θ
θ
A
B
B
A
Find the measure of each side indicated. Round to the nearest tenth. 21)
22)
B
B
44°
7
x
x
9.2
49°
A
C
A
23)
B
C
24)
C 12
3 23°
A
25)
B 9.8
47.6°
C
x
A
B
x
26)
2
A
B
34°
54.7°
x
C
A
C
x
27)
A
28)
A 4
68° x
x
B B
29)
C
38°
C
6
30)
C
B
A 6
x 34°
A
7
68°
C
x
B
31)
9
C
32)
C
A
10 52°
x
28°
B
x
B
33)
34)
B
8
C
B
x
64° A x
C
-2-
19°
6
A
A
35)
36)
B
C
B
35° x
A
x
11
31°
C
4
A
Find the missing side using the PYTHAGOREAN TH. then find the trig function indicated. 37) cos θ
38) sin θ 12 15
5
θ
θ 20
39) sin θ
40) tan θ 17
13 5
θ
θ
8
41) cos θ
42) sin θ
θ 4
θ
14
5 7 3
43) tan θ
44) tan θ
θ
15 4 3 13 17
θ
45) cos θ
46) tan θ 5 10
5 7
θ θ
15 16
47) sin θ
48) tan θ 9
14
θ
θ 13 12
49) tan θ
50) sin θ 11
θ
5 17
θ
13 4 3
-3-
Geometry
Name___________________________________
Trig functions practice 8-3
Date________________ Period____
Find the measure of each angle indicated. Round to the nearest tenth. 1)
2)
B
A
θ
θ
10
10.8
C
3)
A
10
C
4)
B
B
10
A 11.2
θ
3
θ 7
B
C C
5)
A
5
6)
B
θ
A
θ
C
B
7
6
7)
11.1
C
A
3.7
8)
B θ
12
C
8
4
3
A
C
9)
B
θ
A
10)
B
B
11.7 5
7.4
θ
A
C
θ
A
11)
12)
B
C
9
C 8.8
7
θ
11
A
B
θ
C
5
13)
A
14)
A
B θ 9
8.8
θ
B
15)
C 6
A
6
C
16)
B θ
A θ 3
6
2
C
B
A
-1-
11
C
17)
18)
C 12
C
10
5
θ
θ
B
A
A
19)
20)
C
C
8
6
B
7
9
8
θ
θ
A
B
B
A
Find the measure of each side indicated. Round to the nearest tenth. 21)
22)
B
B
44°
7
x
x
9.2
49°
A
C
A
23)
B
C
24)
C 12
3 23°
A
25)
B 9.8
47.6°
C
x
A
B
x
26)
2
A
B
34°
54.7°
x
C
A
C
x
27)
A
28)
A 4
68° x
x
B B
29)
C
38°
C
6
30)
C
B
A 6
x 34°
A
7
68°
C
x
B
31)
9
C
32)
C
A
10 52°
x
28°
B
x
B
33)
34)
B
8
C
B
x
64° A x
C
-2-
19°
6
A
A
35)
36)
B
C
B
35° x
A
x
11
31°
C
4
A
Find the missing side using the PYTHAGOREAN TH. then find the trig function indicated. 37) cos θ
38) sin θ 12 15
5
θ
θ 20
39) sin θ
40) tan θ 17
13 5
θ
θ
8
41) cos θ
42) sin θ
θ 4
θ
14
5 7 3
43) tan θ
44) tan θ
θ
15 4 3 13 17
θ
45) cos θ
46) tan θ 5 10
5 7
θ θ
15 16
47) sin θ
48) tan θ 9
14
θ
θ 13 12
49) tan θ
50) sin θ 11
θ
5 17
θ
13 4 3
-3-
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