Test:
Trigonometry - Challenging
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Question 1:
Find
x
A
x
=
8.21
B
x
=
0.82
C
x
=
9.76
D
x
=
10.73
Question 2:
Find
α
A
α
=
27.25
°
B
α
=
40.11
°
C
α
=
43.13
°
D
α
=
38.82
°
Question 3:
Find
x
A
x
=
14.17
B
x
=
12.28
C
x
=
13.79
D
x
=
14.84
Question 4:
Find
cos
x
=
1
3
for the values between
−
360
∘
≤
x
≤
0
A
x
=
−
70.53
∘
,
−
250.53
∘
B
x
=
−
70.53
∘
,
−
289.47
∘
C
x
=
−
19.47
∘
,
−
179.9
∘
D
x
=
−
70.53
∘
,
−
340.53
∘
Question 5:
Find
tan
x
=
−
1
for values between
−
π
≤
x
≤
π
A
x
=
−
45
∘
,
45
∘
B
x
=
45
∘
,
135
∘
C
x
=
−
45
∘
,
135
∘
D
x
=
−
45
∘
Question 6:
Find the angle
α
:
A
α
=
62.81
∘
B
α
=
68.66
∘
C
α
=
43.24
∘
D
α
=
73.69
∘
Question 7:
Calculate the length of
A
C
:
A
5.67
c
m
B
6.41
c
m
C
4.5
c
m
D
6.92
c
m
Question 8:
Find the length
B
C
:
A
11.56
c
m
B
11.12
c
m
C
10.55
c
m
D
8.83
c
m
Question 9:
Calculate the area of the triangle:
A
22.12
c
m
2
B
19.26
c
m
2
C
17.64
c
m
2
D
20.53
c
m
2
Question 10:
Find the angle
α
, if the area of the triangle is
11.11
c
m
2
A
40.17
∘
B
65.41
∘
C
27
∘
D
112.7
∘
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