Name_______________________ *Be sure to know how to work out the multiple... The final will consist of multiple choice and free response...
Transcription
Name_______________________ *Be sure to know how to work out the multiple... The final will consist of multiple choice and free response...
Name_______________________ Geometry 1st Semester Review *Be sure to know how to work out the multiple choice questions. The final will consist of multiple choice and free response questions. Chapter 1 1. Which term describes ∠LMP? A. acute B. obtuse 2. What is m∠WXY? A. 20˚ C. 60˚ B. 40˚ D. 100˚ 3. Which pair of angles is adjacent? A. ∠1 and ∠2 B. ∠1 and ∠3 4. If m∠A 47˚, what is the measure of a complement of ∠A? A. 43˚ B. 133˚ 5. What is the area of a triangle with a base of 6 inches and a height of 3 inches? A. 9 in2 B. 18 in2 6. What is the approximate area of a circle with a radius of 4 feet? Use 3.14 for . A. 12.56 ft2 C. 50.24 ft2 B. 25.12 ft2 D. 200.96 ft2 7. What are the coordinates of the midpoint of GH with endpoints G(2, 5) and H(4, 1)? A. (6, 4) C. (3, 2) B. (1, 3) D. (2, 6) 8. Use the Distance Formula to find VW. A. 5 B. C. 9 29 D. 25 9. Use the Pythagorean Theorem to find the length of the hypotenuse. A. 10 C. 48 B. 14 D. 100 10. Which segment is on line n? F. AD H. AC G. BC J. BE 11. Which is the name of a ray with endpoint A? A. DA C. CA B. BC D. AB 12. What is the measure of RT ? A. 5 C. 26 B. 16 D. 40 13. Which term describes ∠PMQ? A. obtuse C. right B. straight D. acute 14. What is m∠PMN? F. 22˚ G. 90˚ H. 68˚ J. 112˚ 15. Which angles are adjacent and form a linear pair? A. ∠1 and ∠2 C. ∠2 and ∠3 B. ∠3 and ∠4 D. ∠1 and ∠5 16. What is the area of a triangle with a height of 3 inches and a base of 5.5 inches? A. 8.25 in2 2 B. 8.5 in C. 16.5 in. D. 16.5 in2 17. A circle has a diameter of 10 feet. What is its approximate area? F. 314.5 ft2 H. 50.24 ft2 G. 87.54 ft2 J. 78.54 ft2 18. Given GH with endpoints G(11, 4) and H(1, 9), what are the coordinates of the midpoint of GH ? A. (12, 5) C. (10, 13) B. (6, 2.5) D. (5, 6.5) 19. What is the distance from M(1, 6) to N(11, 1)? A. 12 units C. 13 units B. D. 169 units 149 units 20. What is the distance from V to W? F. 17 cm H. 120 cm G. 23 cm J. 289 cm Chapter 2 Circle the best answer. 21. Which conditional statement is true? A. If two angles are acute, then they are complementary. B. If an angle is acute, then its measure is less than 90o. 22. What is the converse of “If there are clouds in the sky, then it is raining”? A. If it is raining, then there are clouds in the sky. B. If it is not raining, then there are clouds in the sky. C. If it is raining, then there are no clouds in the sky. D. If it is not raining, then there are no clouds in the sky. 23. Given: Pluto is the only planet other than Earth with only one moon. A student is looking through a telescope at a planet that has only one moon. What conclusion can be drawn? A. The student is not looking at Pluto. B. The student is looking at Pluto. 24. Given: If two angles are complementary, then both angles measure less than 90o. Angles that measure less than 90o are acute. 1 and 2 are complementary. What conclusion can be drawn? A. Only 1 is acute. B. Only 2 is acute. C. Both angles are acute. D. Neither angle is acute. 25. What is the contrapositive of “If there are clouds in the sky, then it is raining”? A. If it is raining, then there are clouds in the sky. B. If it is not raining, then there are clouds in the sky. C. If it is raining, then there are no clouds in the sky. D. If it is not raining, then there are no clouds in the sky. 26. Which property is used in solving y + 3 =11? A. Symm. Prop. of = B. Div. Prop. of = C. Mult. Prop. of = D. Subtr. Prop. of = 27. Which is an example of the Reflexive Property of Congruence? A. AB EF B. EF EF 28.Given the partially completed two-column proof, which is the reason for Step 3? Statements Reasons 1. AE FB 1. Given 2. FB EF 2. Given 3. AE EF 3. ? Circle the best answer. 29. What is the next item in the pattern? -1, 2, -4, 8, . . . A. -16 C. 4 B. -4 D. 16 A. Def. of midpoint B. Trans. Prop. of 30. Which is a counterexample that shows that the following conjecture is false: “If 1 and 2 are supplementary, then one of the angles is obtuse”? F. m 1=45o and m 2 = 45o G. m 1 = 53o and m 2 = 127o H. m 1 = 90o and m 2 = 90o J. m 1 = 100o and m 2 = 80o 31. What is the inverse of the conditional statement “If a number is divisible by 6, then it is divisible by 3”? A. If a number is divisible by 3, then it is divisible by 6. B. If a number is not divisible by 6, then it is not divisible by 3. C. If a number is not divisible by 3, then it is not divisible by 6. D. If a number is not divisible by 6, then it is divisible by 3. 32. Given: If one angle of a triangle is a right angle, then the other two angles are both acute. A triangle has a 45o angle. What conclusion can be drawn? F. One of the other two angles is 90o. G. One of the other two angles is obtuse. H. All three angles are acute. J. No conclusion can be drawn. 33. Identify the property that justifies the statement “∠N ≅ ∠N ” F. Addition Prop. of G. Reflex. Prop. of H. Trans. Prop. of J. Sym. Prop. of 34. Which property is NOT used when solving 3x + 15 = 2x – 1? A. Subtraction Prop. B. Add. Prop. of = C. Div. Prop. of = D. Sym. Prop. of = 35. Identify the property that justifies the statement “If ∠B ∠A, then ∠A ∠B.” F. Addition Prop. of G. Reflex. Prop. of H. Trans. Prop. of J. Sym. Prop. of 36. Complete a two column proof for the following. Given: are supplementary, and are supplementary. Prove: ________STATEMENT____________________________REASON___________________ 37. Complete a two column proof for the following. Given: ∠2 ≅ ∠3 Prove: ∠1 ≅ ∠4 1 2 3 4 N 1 ________STATEMENT____________________________REASON___________________ For 38 and 39, Find the measure and name the theorem that justifies your answer. 38. Given that AD = 36, find AB. A B 2x 4 C D 5x 2 39. Find m∠ABC D A B (6 x 1) (14 x) E C 40. E Given: B is the midpoint of AC and AB EF. F Prove: BC EF A B C Statement Chapter 3 41. Given: l || m, 1 3 Prove: j || d Reason l j 1 m d 2 3 ___________STATEMENT_____________________________REASON____________________ Use the figure to identify each of the following. G F 42. a pair of skew segments: _______________ H B 43. a pair of parallel segments: _____________ 44. a pair of perpendicular segments: _______ A W T Identify each angle pair. 45. ∠1 and ∠7: _______________________ 2 4 1 46. ∠4 and ∠8:_______________________ 5 47. ∠4 and ∠7: _______________________ 7 6 48. ∠2 and ∠6: _______________________ 3 8 49. ∠1 and ∠6: _______________________ 50. Solve for x and find each angle measure. 50a. x = _____________________________ A 50b. m∠ABH = ______________________ C 50c. m∠CDF = ______________________ 3x+11 H B E 9x-61 D F S 51. Solve for x and find each angle measure. 51a. x = _______________________ K 51b. m∠STA = __________________ S T 51c. m∠KAT = __________________ 12x A 12x+3 3 9x D E 52. Find the slope of the line that passes through the points (-2,4) and (6,8). 52. m= ___________ 53. Write the equation of the line through (-6,-2) and (3,4) in point-slope form and slope-intercept form. Point-slope form__________________ Slope-int. form ___________________ 54. Determine whether 6x + y = 3 and 12x + 2y = 6 are parallel, intersect, or coincide. 54. _________________________ Chapter 4 Circle the best answer. 55. What type of triangle is ∆ABC? A. acute B. equiangular C. obtuse D. right 56. Which pair of angle measures CANNOT be the acute angles of a right triangle? A. 29o and 61o B. 30o and 60o C. 38o and 53o D. 45o and 45o 57. What is m ACD? A. 100 B. 130 58. If ∆KLM ∆RST, find the value of x. A. 18 B. 45 59. What additional information would allow you to prove the triangles congruent by AAS? A. BEA D B. D C C. D A D. A C 60. Which postulate or theorem can you use to prove ∆ABE ∆CDE? A. SSS B. SAS C. ASA D. AAS 61. What additional information will prove ∆ABE ∆CDE by HL? A. AB CD B. AE CE Circle the best answer. 62. Classify the triangle. F. isosceles acute G. isosceles obtuse H. scalene acute J. scalene obtuse 63. What is the length of side BC ? A. 3 C. 10 B. 8 D. 24 Use the figure for Exercises 64 and 65. 64. What is m∠KLM? F. 3 H. 42 G. 22 J. 64 65. What is m∠M? A. 0.2˚ C. 26˚ B. 4˚ D. 64˚ 66.What is the m∠U? F. 5˚ G. 15˚ H. 40˚ J. 120˚ 67.∆KLM ∆RST. m∠L = (3x + 15)o and m∠S = (6x + 3)o. What is the value of x? F. 2 G. 4 H. 6 J. 27 Use the figure for Exercises 68-69. 68. If AD = 5y + 7 and BC = 7y – 3 , what must the value of y be to prove ∆AED ∆CEB by the SSS Postulate? A. 2 C. 17 B. 5 D. 32 69. What postulate or theorem justifies the congruence statement ∆ABE ∆CDE? F. SSS H. ASA G. SAS J. AAS 70. What is the value of x? 71. A. 12 C. 18 B. 19.5 D. 60 Given: K M, K L J M L J Prove: JKL JML Statement Reason 72. Given: AB ≅ BC; BD bisects ∠B. Prove: ∠A ≅ ∠C Statement B Reason A D Chapter 5 Use the figure to the right for 73-76 73. Given that line p is the perpendicular bisector of XZ and XY = 12, find ZY. _____________________ 74. Given that XZ = 34, YX = 22, and YZ = 22, find ZW. _____________________ 75. Given that line p is the perpendicular bisector of XZ; XY = 8n-5, and YZ = 35, find n. _____________________ 76. Given that XY = ZY, WX = 3x – 1, and XZ 5x + 16, find ZW. _____________________ Use the figure to the right for 77-79. 77. Given that FG = HG and m FEH = 66˚, find m HGE. _____________________ 78. Given that EG bisects FEH and GF = 11 find GH. _____________________ 79. Given that FEG GEH, FG = 5x – 15, and HG = 3.5x + 3, find FG. _____________________ Write an equation in point-slope form for the perpendicular bisector of the segment with the given endpoints. 80. L(-3, 6), M(1, 2) __________________________ 81. T(-3, -2), U(3, 0) _______________________________ C Use the figure for Exercises 82-85. GB 13 and CD 10. Find each length. 82. FG _________________ 83. BF _________________ 84. GD _________________ 85. CG _________________ Find the centroid of the triangle with the given vertices. 86. X(-5, 4), Y(2, -3), Z(1, 4) 87. (0, -1), B(2, -3), C(4, -1) (_________, _________) (_________, _________) 88. Draw an obtuse triangle and all three of the altitudes for the triangle. 89. Draw a right triangle and all three of the medians for the triangle. Use the Triangle Midsegment Theorem to name parts of the figure for Exercises 90-94. 90. a midsegment of ABC _____________________ 91. a segment parallel to AC _____________________ 92. a segment that has the same length as BD _____________________ 93. a segment that has half the length of AC _____________________ 94. a segment that has twice the length of EC _____________________ Use the figure for Exercises 95-100. Find each measure. 22 15 95. HI ___________________ 96. DF ___________________ 97. GE ___________________ 98. m HIF ___________________ 99. m HGD ___________________ 100. m D ___________________ 101. Write the angles of DEF in order from smallest to largest. 102. Write the sides of GHI in order from shortest to longest. Tell whether a triangle can have sides with the given lengths. If not, explain why not. 103. 8, 8, 16 _______________ 104. 0.5, 0.7, 0.3 ________ 1 105. 10 , 4, 14 ________ 2 106. 3x + 2, x2, 2x when x = 4 _______________________ 107. 3x + 2, x2, 2x when x = 6 _______________________ The lengths of two sides of a triangle are given. Find the range of possible lengths for the third side. 108. 8.2 m, 3.5 m 109. 298 ft, 177 ft 110. 3 mi, 4 mi Find the value of x. Give your answer in simplest radical form. 111. 112. ______________________ 113. ______________________ ______________________ Find the missing side lengths. Give your answer in simplest radical form. Tell whether the side lengths form a Pythagorean Triple. 114. 115. ______________________ 116. ______________________ ______________________ Tell whether the measures can be the side lengths of a triangle. If so, classify the triangle as acute, obtuse, or right. 117. 15, 18, 20 118. 7, 8, 11 ______________________ 119. 6, 7, 3 13 ______________________ ______________________ Find the value of x in each figure. Give your answer in simplest radical form. 120. 121. ______________________ 122. ______________________ ______________________ Find the values of x and y. Give your answers in simplest radical form. 123. x = _______ y = _______ 124. x = _______ y = _______ 125. x = _______ y = _______ Constructions: Complete each construction. 126. Copy the given segment. 127. Construct the segment bisector of the given segment. 128. Copy an angle congruent to the angle given. 129. Construct the angle bisector. 130. Construct the perpendicular bisector of the given segment. 131. Construct a line parallel to the given line.