18. 20. 13 22° 9 57° 125° X 32% X 19. 21. 34° X 3.1° X 26 70° 66° 9

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 3E
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N
For Exercises 18-23, find each length x. Round to
the nearest tenth. SEE EXAMPLES 1 AND 2
18.
13
19.
X
X
22°
26
20.
vo
1/2
gie.
22.
34°
+
57°
125°
21.
32%
X
21.
23.
X
113°
78°
For Exercises 24-29, find each angle measure xº.
Round to the nearest tenth. SEE EXAMPLE 3
24.
25.
22
10
16
to
122°
27.
19
68°
6
34°
3.1°
70°
66°
59°
11
9
Transcribed Image Text:N For Exercises 18-23, find each length x. Round to the nearest tenth. SEE EXAMPLES 1 AND 2 18. 13 19. X X 22° 26 20. vo 1/2 gie. 22. 34° + 57° 125° 21. 32% X 21. 23. X 113° 78° For Exercises 24-29, find each angle measure xº. Round to the nearest tenth. SEE EXAMPLE 3 24. 25. 22 10 16 to 122° 27. 19 68° 6 34° 3.1° 70° 66° 59° 11 9
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