Geo_Book_Answers

Recommendations

Info

Answers to Exercises USING YOUR ALGEBRA SKILLS 10 1. h A b P 2h 2. b 2 or b P 2 h 3. r 3V H 4. b c 2 a2 2 • SA 5. a l P 6. y2 mx2 x1 y1 or y2 mx2 mx1 y1 7. v d t The original formula gives distance in terms of velocity and time. 9 8. F C 5 32 The original formula converts degrees Fahrenheit to degrees Celsius. 2 9. L g T 2 The original formula gives the period of a pendulum (time of one complete swing) in terms of length and acceleration due to gravity. 10b. (Using Your Algebra Skills 10) 122 ANSWERS TO EXERCISES 10a. V F E 2 10b. See table below. 11a. The corresponding radii are approximately 3.63 cm, 3.30 cm, 3.02 cm, and 2.79 cm. 11b. The corresponding heights are approximately 9.32 cm,10.49 cm,11.61 cm,and 12.70 cm. 11c. The corresponding volumes are approximately 129 cm 3 , 120 cm 3 , 111 cm 3 , and 104 cm 3 . 11d. Answers will vary. Sample answer: The cone with slant height 10 cm has the widest radius, so a scoop of ice cream is least likely to fall off, and that cone also has the greatest volume. 11e. Answers will vary. Sample answer: The cone with slant height 13 cm has the greatest height, so the cone appears bigger even though it has the same surface area as the other cones; that cone also has the smallest radius and smallest volume, so it could hold less ice cream and still appear to be a bigger cone. m1 m2 m3 f f 12a. A 5 12b. average of 60: 31; average of 70: 56; average of 80: 81; average of 90: 106 (impossible) Pentahedron Hexahedron Octahedron Decahedron Dodecahedron Number of faces 5 6 8 10 12 Number of edges 8 10 12 16 20 Number of vertices 5 6 6 8 10
CHAPTER 10 REVIEW 1. They have the same formula for volume: V BH. 2. They have the same formula for volume: V 1 3 BH. 3. 6240 cm3 4. 1029 cm3 3233 cm3 5. 1200 cm3 6. 32 cm3 7. 100 cm3 314.2 cm3 8. 2250 cm3 7069 cm3 9. H 12.8 cm 10. h 7 cm 11. r 12 cm 12. r 8 cm 13. 960 cm3 14. 9 m 15. 851 cm3 16. four times as great 17a. Vextra large 54 in3 Vjumbo 201.1 in3 Vcolossal 785.4 in3 17b. 14.5 times as great 18. Cylinder B weighs 8 3 times as much as cylinder A. 19. 2129 kg; 9 loads 20. H2r. Vsphere 0.524. Thus, 52.4% of Vbox the box is filled by the ball. 21. approximately 358 yd3 22. No. The unused volume is 98 in3 ,and the volume of the meatballs is 32 in3 . 23. platinum 24. No. The ball weighs 253 lb. 25. 256 lb 26. approximately 3 in. 4 r 3 3 (2r) 3 27. 8 m3 0.23 m3 33 32 28. 160 cubic units ANSWERS TO EXERCISES 123 Answers to Exercises
Page 1 and 2:
Answers to Exercises 0 CHAPTER 0
Page 3 and 4:
LESSON 0.3 1. Design with reflectio
Page 5 and 6:
LESSON 0.5 1. possible answers: Sco
Page 7 and 8:
CHAPTER 0 REVIEW 1. possible answer
Page 9 and 10:
USING YOUR ALGEBRA SKILLS 1 1. (3,
Page 11 and 12:
34. B 35. MY; CK; mI 36. SEU; EUO;
Page 13 and 14:
20. false 21. true 22. false; Thoug
Page 15 and 16:
LESSON 1.5 1. D 2. A 3. C 4. B 5. C
Page 17 and 18:
LESSON 1.7 1. Answers will vary. Sa
Page 19 and 20:
LESSON 1.8 1. 2. 3. 4. 5. 6. 7. 8.
Page 21 and 22:
CHAPTER 1 REVIEW 1. true 2. False;
Page 23 and 24:
Answers to Exercises CHAPTER 2 •
Page 25 and 26:
8. 8n is steeper; the coefficient o
Page 27 and 28:
LESSON 2.4 1. inductive; deductive
Page 29 and 30:
LESSON 2.6 1. 63° 2. 90° 3. no 4.
Page 31 and 32:
CHAPTER 2 REVIEW 1. poor inductive
Page 33 and 34:
1. 2. 3. 4. 5. A B Q D C D 1 CD 2 E
Page 35 and 36:
1. LESSON 3.3 The answer depends on
Page 37 and 38:
1. D 2. F 3. A 4. C 5. E 6. 7. 8. 9
Page 39 and 40:
LESSON 3.5 1. 2. 3. Construct a seg
Page 41 and 42:
LESSON 3.6 1. Sample description: C
Page 43 and 44:
1. incenter LESSON 3.7 Because the
Page 45 and 46:
LESSON 3.8 1. The center of gravity
Page 47 and 48:
42. true 43. False; any non-acute t
Page 49 and 50:
LESSON 4.2 1. 79° 2. 54° 3. 107.5
Page 51 and 52:
1. yes 2. no 3. no 4 5 9 5 6 12 LES
Page 53 and 54:
LESSON 4.5 1. If two angles and the
Page 55 and 56:
1. See flowchart below. 2. See flow
Page 57 and 58:
1. 6 2. 90°; 18° 3. 45° 4. See f
Page 59 and 60:
CHAPTER 4 REVIEW 1. Their rigidity
Page 61 and 62:
Answers to Exercises 5 CHAPTER 5
Page 63 and 64:
LESSON 5.3 1. 64 cm 2. 21°; 146°
Page 65 and 66:
1. 34 cm; 27 cm 2. 132°; 48° 3. 1
Page 67 and 68:
1. 2. 3. (0, 4) y y y (0, 6) USING
Page 69 and 70:
22. The platform stays parallel to
Page 71 and 72: 7. 2 RE AB 3 BR EA 4 AR EB
Page 73 and 74: 20. Speed: 901.4 km/h. Direction:
Page 75 and 76: LESSON 6.2 1. 165°, definition of
Page 77 and 78: 1 OR CD ? 5 OC OD ? All radii o
Page 79 and 80: LESSON 6.5 1. d 5 cm 2. C 10 cm 3
Page 81 and 82: 1. 1 2 ,3 USING YOUR ALGEBRA SKILL
Page 83 and 84: CHAPTER 6 REVIEW 1. Answers will va
Page 85 and 86: Answers to Exercises CHAPTER 7 •
Page 87 and 88: 15. possible answer: HIKED 16. one,
Page 89 and 90: LESSON 7.4 1. Answers will vary. 2.
Page 91 and 92: LESSON 7.6 1. Answers will vary. 2.
Page 93 and 94: 1. parallelograms 2. parallelograms
Page 95 and 96: CHAPTER 7 REVIEW 1. true 2. true 3.
Page 97 and 98: 1. 20 cm 2 2. 49.5 m 2 3. 300 squar
Page 99 and 100: USING YOUR ALGEBRA SKILLS 8 1. x 2
Page 101 and 102: LESSON 8.5 1. 9 in 2 2. 49 cm 2 3.
Page 103 and 104: LESSON 8.7 1. 150 cm 2 2. 4070 cm 2
Page 107 and 108: USING YOUR ALGEBRA SKILLS 9 1. 6 2.
Page 109 and 110: LESSON 9.4 1. No. The space diagona
Page 111 and 112: LESSON 9.6 1. 18 cm2 56.5 cm2 2. (
Page 113 and 114: 32. 4 in./s 12.6 in./s 33. true 34
Page 115 and 116: 36. See table below. Possible answe
Page 117 and 118: LESSON 10.3 1. 192 cm3 2. 84 cm3 2
Page 119 and 120: LESSON 10.5 1. 675 cm3 2. 36 cm3 1
Page 121: LESSON 10.7 1. V 972 cm3 3054 cm3
Page 125 and 126: 1. A 2. B 3. possible answer: 3. po
Page 127 and 128: LESSON 11.3 1. 16 m 2. 4 ft 3 in. 3
Page 129 and 130: 1. 18 cm 2. 12 cm 3. 21 cm 4. 15 cm
Page 131 and 132: 1. 1715 cm 3 LESSON 11.6 2. 16 cm,
Page 133 and 134: Use segment addition to show that e
Page 137 and 138: LESSON 12.3 1. 329 cm 2 2. 4 cm 2 3
Page 139 and 140: LESSON 12.5 1. approximately 12.7 m
Page 141 and 142: 13. f(x) 1 2 (x3)2 2; A vertical s
Page 145 and 146: LESSON 13.2 1. Linear Pair Postulat
Page 147 and 148: LESSON 13.3 1. Case 1: P is colline
Page 149 and 150: 1. A LESSON 13.4 Use x to represent
Page 151 and 152: LESSON 13.5 1. D: Paris is in Franc
Page 153 and 154: 8. Use the Inscribed Angle Theorem
Page 155 and 156: 11. CA Postulate 12. 13. Perpendicu
Page 157 and 158: 8. Task 1: Given: A rectangle with
Page 159 and 160: CHAPTER 13 REVIEW 1. False. The qua
show all

Geo_Book_Answers

Create successful ePaper yourself

Delete template?

Save as template?