Figure 1F
IN ANSWERING QUESTIONS 1-49 THROUGH 1-51,
REFER TO FIGURE 1F AND TO THE TABLE OF
TRIGONOMETRIC FUNCTIONS LOCATED IN
APPENDIX III OF YOUR TEXT.
1-49. How many degrees are contained in
angle b if angle a = 55°?
1. 30°
2. 35°
3. 40°
4. 45°
1-50. What is the length of side b if side
a = 6 feet and angle b = 30°?
1. 3.32 ft
2. 3.46 ft
3. 10.39 ft
4. 10.82 ft
1-51. What is the size of angle B if side
b = 6 feet and side c = 20 feet?
1. 16°42’
2. 17°00’
3. 17°28’
4. 17°30’
Figure 1G
IN ANSWERING QUESTIONS 1-52 THROUGH 1-56,
REFER TO FIGURE 1G.
1-52. When given angle b and sides b and
c, what law should you use to solve
for all unknowns?
1. Law of sines
2. Law of cosines
3. Law of tangents
1-53. When angle a and sides b and c are
known, what law should you use to
determine side a?
1. Law of sines
2. Law of cosines
3. Law of tangents
1-54. When angle a and sides b and c are
known, what law should you use to
solve for all unknown angles?
1. Law of sines
2. Law of cosines
3. Law of tangents
1-55. When side a and angles a and b are
known, what law should you use to
solve for all unknowns?
1. Law of sines
2. Law of cosines
3. Law of tangents
1-56. When given sides a, b, and c, what
law should you use to solve for all
unknown angles?
1. Law of sines
2. Law of cosines
3. Law of tangents
Figure 1H
IN ANSWERING QUESTIONS 1-57 AND 1-58,
REFER TO FIGURE 1H.
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