ASSIGNMENT QUESTIONS

Engineering Aid 3 - Beginning Structural engineering guide book
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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. 6

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