Name: Block: Date: 2015 - 2016 Geometry Mid-Year Quiz Review Packet Due: 1/13/16 (A Day Classes) 1/14/16 (B Day Classes) The mid-year review quiz will be on Chapters 1 through 6 that we cover in class. The BEST way to study for the quiz will be to complete this packet, review old tests and quizzes, and look over you notes. The review packet will be graded on: Completion (10 points) – On January 13th and 14th this packet will be collected in class for a completion grade. Completion means every problem has been attempted to the best of your ability and work has been shown. Late packets will be assessed a penalty. Accuracy (10 points) -- On January 20th and 21st, we will have a 10 point quiz on problems from this packet. I will randomly select 5 problems to grade on accuracy. You will be able to use your packet on this quiz. Completion 10 GOOD LUCK!!! ALL FIGURES ARE NOT DRAWN TO SCALE Chapter 1: Essentials of Geometry 1. Use the Segment Addition Postulate to solve for p. FE = 5p – 6 EG = 3p + 20 FG = 110 F E G 2. Find the distance between A(6, 0) and B(4, 4). Keep your answer in radical form. 3. Find the midpoint of A(6, 0) and B(4, 4). 4. M is the midpoint of segment AB. Given the coordinates of A(2, 4) and M(4, 6), find the coordinates of B. 5. Given that mGED = 61, mGEF = 3x + 8 and mDEF = 8x – 2, find mDEF. G F D E 6. ALL FIGURES ARE NOT DRAWN TO SCALE ⃗⃗⃗⃗⃗⃗ bisects ABC. Find mABC. In the diagram, 𝐵𝐷 7. In the figure below, mAED = 128. Which of the following statements is false? A] B] C] D] mBEC = 128 AEB and DEC are congruent BEC and CED are vertical angles mAEB = 52 D A E B C 8. 1 and 2 are supplementary angles and 1 and 3 are vertical angles. If m2 = 72, find m3. 9. Solve for x. 5x + 137 4x + 25 10. Solve for x. 5x + 24 3x + 30 ALL FIGURES ARE NOT DRAWN TO SCALE For questions #11 – 13, use the diagram to the right. 11. Name all angles that are adjacent to BOC. B C A 12. Name an angle that is complementary to COD. O E 13. Name all angles that are supplementary to EOA. 14. Which of the following statements is false? A] B] C] D] 15. Three non-collinear points determine a plane. Any three points lie on a distinct line. A line contains at least two points. Through any two distinct points there exists exactly one line. In the figure, mCAD is twice mCAB. What is mCAB? Chapter 2: Reasoning and Proof 16. Rewrite the statement in if-then form: “Vertical angles are congruent.” 17. What is the converse of the statement, “If it rains, then I carry my umbrella?” D ALL FIGURES ARE NOT DRAWN TO SCALE 18. What is the inverse of the statement, “If two lines are parallel, then they do not intersect?” 19. What is the contrapositive of the statement, “If I like school, then I attend every day?” 20. State a counter-example to the following statement: “If x2 = 25, then x = 5.” For questions #21 – 23, decide if a conclusion can be reached. If so, write the conclusion. If a conclusion cannot be reached, then state INVALID. 21. If you get a hit, then your baseball team will win. You hit a home run. 22. If it is July 4th, then we will have a picnic. If we have a picnic, then we will have fireworks. 23. All Redskins fans are energetic. Dave is energetic. 24. t p 25. p 27. rq 26. qs pf f Let a represent “x is an odd number”. Let b represent “x is a multiple of 3”. If x = 7, which of the following is true? A] ab C] ~a b B] a ~b D] ~a ~b 28. ALL FIGURES ARE NOT DRAWN TO SCALE According to the Venn diagram, which is true? Football Players A] All football players play offense and defense. B] No football players play offense and defense. C] All football players play defense. D] Some football players play offense and defense. Offense Defense Chapter 3: Parallel and Perpendicular Lines For questions #29 – 33, line l and line m are parallel in the diagram below. Match each statement with its correct postulate or theorem. 1 2 4 l 2 ≅ 8 A. Alternate interior s _____ 30. 4 ≅ 6 B. Corresponding s _____ 31. 2 ≅ 6 C. Consecutive exterior s _____ 32. 4 supp 5 D. Consecutive interior s _____ 33. 2 supp 7 E. Alternate exterior s 3 5 8 34. _____ 29. 6 m 7 Find m1, given that ⃡⃗⃗⃗⃗ 𝑃𝑄 // ⃡⃗⃗⃗ 𝑅𝑆. 79 P R 1 Q S 35. ALL FIGURES ARE NOT DRAWN TO SCALE In the figure, l // n and r is a transversal. Which of the following is not necessarily true? A] 2 6 B] 8 2 C] r 1 4 7 4 D] 36. 5 3 l 6 5 8 2 3 n 7 ⃡⃗⃗⃗⃗ // 𝐺𝐷 ⃡⃗⃗⃗⃗ and mABC = 108. Which of the following statements is false? In the figure shown, 𝐻𝐶 A] mDEF = 72 B] ABH and AEG are alternate exterior angles C] HBF and AED are alternate interior angles D] mGEF = 108 C D A E B F H G 37. Find the slope of the line passing through the points (1, 6) and (6, 5). 38. Find the equation of a line which contains the point (2, 5) and is parallel to the line y = 3x + 5. 39. Find the equation of a line which contains the point (4, -5) and is perpendicular to the line y = 2x + 3. ALL FIGURES ARE NOT DRAWN TO SCALE 40. Are the following two lines parallel, perpendicular or neither? -7x + 6y = 4 and 6x + 7y = 0 41. Line m contains points (1, 3) and (2, 2). Which of the following pairs of points define a line parallel to m? 42. A] (0, 0) and (1, 1) B] (0, 0) and (1, 5) C] (1, 1) and (6, 2) D] (4, 0) and (5, 5) A construction worker needs to make sure a ceiling beam is parallel to its corresponding floor beam. Using the drawing as a guide, which pair of measurements is sufficient to show the beam are parallel? A 43. A] x=z B] y=w C] x=y D] y=z x B z w y C What value of x will make lines l and m parallel? (2x + 30) (4x – 90) D ALL FIGURES ARE NOT DRAWN TO SCALE 44. Using the information from the diagram, which is true? D C ̅̅̅̅ 𝐵𝐷 // ̅̅̅̅ 𝐸𝐹 A] ̅̅̅̅ // ̅̅̅̅ 𝐶𝐵 𝐵𝐷 C] 45. B] D] ̅̅̅̅ 𝐵𝐷 // ̅̅̅̅ 𝐷𝐸 ̅̅̅̅ // ̅̅̅̅ 𝐶𝐵 𝐷𝐸 120 w x 80 y 70 z 100 Chapter 4: Congruent Triangles Classify NOP by its sides. O 8 9 N 10 47. P Name an obtuse triangle in the diagram below. 40 60 Line l intersects lines w, x, y, and z. Which two lines are parallel? n 46. F B 75 45 E ALL FIGURES ARE NOT DRAWN TO SCALE B 35 55 65 D 30 A 49. 48. 60 The figure has angle measures as shown. What is C mBCD? Solve for x. x - 10 2x 55 50. Find the measure of ABC. C 51 A 90 B 130 90 51. ABC is a right triangle with right angle at C. Which are the possible measures of A and B? Select all that apply A] 40 and 50 B] 38 and 32 A ALL FIGURES ARE NOT DRAWN TO SCALE 52. C] 52 and 38 D] 52 and 128 Which figures appear to be congruent? 1 3 2 4 5 53. ̅̅̅̅ ______. If ABC XYZ, then 𝐴𝐶 54. If ABC DEF, AB = 10 feet, mB = 59, and mF = 21, which of the following statements is false? A] AC = DF B] BC = EF C] mD = 100 D] B D In the diagram, B E and C F. Find the value of x. 55. B A x + 50 D 75 35 C F ALL FIGURES ARE NOT DRAWN TO SCALE Which of the following statements must be true, if AD BC and AB = AC? 56. A 57. A] ABD ACD by SSS B] ABD ACD by SAS C] ABD ACD by HL D] There are no congruent triangles B D C If HI = JK and IJ = LK, prove the two triangles congruent and state the method. K I H J L 58. Given: B E and C F. What other piece of information is needed to show that ABC DEF by ASA? Hint: Draw a diagram! 59. Refer to the figure below. ABC _____ D B C A E ALL FIGURES ARE NOT DRAWN TO SCALE 60. ALL FIGURES ARE NOT DRAWN TO SCALE Which postulate or theorem can be used to prove that RST VUT? S 170 60 T V R 170 60 U 61. Which postulate or theorem can be used to prove that ABC EDC? A C B D E 62. ̅̅̅̅ and ̅̅̅̅ Given that ̅̅̅̅ 𝐴𝐷 ≅ 𝐵𝐶 𝐴𝐶 ≅ ̅̅̅̅ 𝐵𝐷, which postulate or theorem could be used to prove that DCA CDB? A D 63. B C Find the value of x and y. ALL FIGURES ARE NOT DRAWN TO SCALE 64. Find the values of x and y. x 110 65. y ̅̅̅̅ ≅ 𝐶𝐵 ̅̅̅̅, which term does not describe the triangle? In ABC, 𝐴𝐵 B A] B] C] D] Equilateral Isosceles Acute Obtuse 3x - 2 C x+4 7 A Chapter 6: Similarity 66. Solve for a: 10 5 a2 a2 67. At the same time of day, a man who is 75 inches tall casts a 52.5-inch shadow and his son casts a 35-inch shadow. Determine the height of the man’s son. ALL FIGURES ARE NOT DRAWN TO SCALE For questions #68 – 70, identify the similarity postulate or theorem used to prove that ∆ABC ∆XYZ. Sketch pictures if necessary. Also, state the scale factor, if possible. 68. The side lengths of ABC are 3, 4, 6, and the side lengths of XYZ are 9, 12, 18. 69. In ABC, mA = 15 and mB = 80. In XYZ, mY = 80 and mZ = 85. 70. In ABC, mB = 60 and AB = 6, and BC = 12. In XYZ, mY = 60 and XY = 12, and YZ = 24. For question #70 use the diagram to the right. Round to the nearest tenth. 70. a)Length of GB. b) Length of FC. c) Length of BC. d) Length of CD. ALL FIGURES ARE NOT DRAWN TO SCALE Chapter 5: Triangle Inequality 71. The longest side in the figure is . N 70 L 105 P 65 30 M 72. Two sides of a triangle have lengths 12 and 27. The length of the third side must be greater than _____ and less then _____. 73. On the shores of a river, surveyors marked locations A, B, and C. mACB = 70 and mABC = 65. List the distances between these locations in order, least to greatest? 74. Which of the following could be the sides of ABC? 75. A] AB = 12, BC = 15 and AC = 2 B] AB = 9, BC = 15, AC = 4 C] AB = 150, BC = 100, AC = 50 D] AB = 10, BC = 8, AC = 12 Three lookout towers are located at points A, B, and C on a section of the national forest shown in the diagram. Which of the following is true concerning ABC formed by the towers? A] mA is greatest B] mC is greatest C 4123 km C] D] 5385 km mA is least mC is least A B 4472 km