Trigonometric Ratios Worksheet Page 12
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22A
2. Determine sin , cos , and tan . Then,
determine the measure of angle .
Unless specified otherwise, all angles are
a)
between 0° and 360°. Round all lengths to
the nearest tenth of a unit and all angle
5
3
measures to the nearest degree.
1. Determine the length of x.
4
a)
b)
7
x
4
32°
65
15 m
b)
c)
23 m
x
7
58
41°
3
c)
d)
5
x
28 km
62°
2
29
e)
d)
15 m
13
6
x
133
58°
f)
12
e)
15
369
x
22 m
43°
3. Sketch each triangle and solve if possible.
f )
8 km
54°
a) In △ABC, ∠A = 90�, �, , ∠B = 36�, and
�, and
, and
b = 15.3 m
b) In △DEF, ∠D = 90�, �, , ∠E = 48�, and
�, and
, and
x
e = 9.6 cm
c) In △JKL, ∠J = 90�, �, , ∠K = 62�, and
�, and
, and
j = 7.2 km
d) In △PQR, ∠P = 53�, �, , ∠Q = 37�, and
�, and
, and
p = 13.5 m
12 MHR • Chapter 1 978-0-07-090893-2
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