NAME _____________________________________________ DATE ____________________________ PERIOD _____________ 8 Standardized Test Practice SCORE _____________ (Chapters 1-8) Part 1: Multiple Choice Instructions: Fill in the appropriate circle for the best answer. 1. If Μ Μ Μ Μ ππ΄ bisects ∠ YTB, Μ Μ Μ Μ ππΆ bisects ∠ BTZ, m∠ YTA = 4y + 6, and m∠ BTC = 7y – 4, find m∠ CTZ. (Lesson 1-4) A 52 B 38 C 25 1. D8 2. Which statement is always true? (Lesson 2-5) F If right triangle QPR has sides q, p, and r, where r is the hypotenuse, then π 2 = π2 + π 2 . Μ Μ Μ Μ , then EF = HJ. G If Μ Μ Μ Μ πΈπΉ β₯ π»π½ Μ Μ Μ Μ H If πΎπΏ and Μ Μ Μ Μ ππ are cut by a transversal, then Μ Μ Μ Μ πΎπΏ β₯ Μ Μ Μ Μ ππ. Μ Μ Μ Μ Μ Μ Μ Μ J If π·π and π π» are congruent, then R bisects Μ Μ Μ Μ π·π». 2. 3. The equation for β‘ππ is y – 2 = 8(x + 3). Determine an equation for a line perpendicular β‘ . (Lesson 3-4) to ππ 1 1 Ay= x–7 B y = 8x – 13 Cy=− x+2 D y = –8x 3. 8 8 Μ Μ Μ Μ and Μ Μ Μ Μ 4. Angle Y in β³XYZ measures 90°. ππ ππ each measure 16 meters. Classify β³XYZ. (Lesson 4-1) F acute and isosceles G equiangular and equilateral H right and scalene J right and isosceles 4. 5. Two sides of a triangle measure 4 inches and 9 inches. Determine which cannot be the perimeter of the triangle. (Lesson 5-3) A 19 in. B 21 in. C 23 in. D 26 in. π΄π΅ 6. β³ABC ∼ β³STR, so πΆπ΄ = F π΄π΅ π΅πΆ G ? 5. . (Lesson 6-2) ππ π π ππ π π H π π J ππ 7. The Petronas Towers in Kuala Lumpur, Malaysia, are 452 meters tall. A woman who is 1.75 meters tall stands 120 meters from the base of one tower. Find the angle of elevation between the woman’s hat and the top of the tower. Round to the nearest tenth. (Lesson 8-5) A 14.8° B 34.9° C 55° D 75.1° 6. 7. 8. Which equation can be used to find x? (Lesson 8-4) π¦ F x = y sin 73° H x = cos 73° G x = y cos 73° π¦ J x = sin 73° 8. 9. Which inequality describes the possible values of x? (Lesson 5-6) Ax<4 Cx>2 Bx<2 Dx>4 Chapter 8 9. 68 Glencoe Geometry NAME _____________________________________________ DATE ____________________________ PERIOD _____________ 8 Standardized Test Practice (continued) 10. Ashley wants to make a poster for her campaign from a photograph. She uses a photocopier to enlarge the 4 inch by 6 inch photograph. What are the dimensions of the poster if she increases the size of the photograph by a scale factor of 5? (Lesson 7-7) F 2000 inches by 3000 inches H 9 inches by 11 inches G 0.8 inches by 1.2 inches J 20 inches by 30 inches 10. 11. Find x. (Lesson 6-2) A –3 C 5 B3 D 9 11. 12. Trapezoid ABCD has vertices A(1, 6), B(–2, 6), C(–10, –10), and D(20, –10). Find the measure of ABCD’s midsegment to the nearest tenth. (Lesson 6-6) F3 G 5.3 H 7.2 J 16.5 12. For Questions 13 and 14, use the figure to the right. 13. Find QP to the nearest tenth. (Lesson 8-2) A 7.5 B12 C18.3 D 19.6 13. 14. Find LM. (Lesson 8-3) F5 G 5√3 H9 J 10√3 14. Part 2: Gridded Response Instructions: Enter your answer by writing each digit of the answer in a column box and then shading in the appropriate circle that corresponds to that entry. 15. Find x so that β β₯ m. (Lesson 3-5) 15. 1 4 . 5 0 16. Find c to the nearest tenth. (Lesson 8-6) 16. 1 8 . 0 0 Chapter 8 69 Glencoe Geometry NAME _____________________________________________ DATE ____________________________ PERIOD _____________ 8 Standardized Test Practice (continued) Part 3: Short Response Instructions: Write your answer in the space provided. For Questions 17 and 18, complete the following proof. (Lesson 2-7) Μ Μ Μ Μ Given: Μ Μ Μ π½πΎ ≅ πΏπ Μ Μ Μ Μ ≅ πΎπΏ Μ Μ Μ Μ π»π½ Μ Μ Μ Μ ≅ πΎπ Μ Μ Μ Μ Μ Prove: π»πΎ Proof: Statements Reasons Μ Μ Μ ≅ Μ Μ Μ Μ 1. Μ Μ Μ π½πΎ ≅ Μ Μ Μ Μ πΏπ, Μ π»π½ πΎπΏ 1. Given 2. JK = LM, HJ = KL 3. (Question 18) 2. (Question 17) 3. Segment Addition Post. 4. HJ + JK = KL + LM 4. Add. Prop. of Equality 5. HK = KM 6. Μ Μ Μ Μ π»πΎ ≅ Μ Μ Μ Μ Μ πΎπ 5. Substitution Prop. Def. of ≅ segments 17. ______________________ HJ + JK = HK; KL + LM = KM 18. ______________________ 6. Def. of ≅ segments For Questions 19 and 20, use the figure at the right. m∠1 = 32, m∠2 = 82, m∠3 = 66, m∠4 = 114, m∠5 = 57 19. ______________________ 19. Find the measure of the numbered angles if m∠ ABC = 57 and m∠ BCE = 98. (Lesson 4-2) 20. If Μ Μ Μ Μ π΅π· is a midsegment of β³ABC, AD = 2x – 6, and DC = 22.5 – 4x, find AC. (Lesson 5-2) 7 20. ______________________ 21. If β³DEF ≅ β³HJK, m∠ D = 26, m∠ J = 3x + 5, and m∠ F = 92, find x. (Lesson 4-3) 19 21. ______________________ 22. Use the Exterior Angle Inequality Theorem to list all of the angles with measures that are less than m∠ 1. (Lesson 5-3) ∠3, ∠4, ∠5, ∠7, ∠ABC 22. ______________________ 23. a. Determine whether β³EFH ∼ β³JGH. Justify your answer. (Lesson 7-3) yes, both are 30°- 60°- 90° triangles; AA Similarity 23.a ______________________ Μ Μ Μ Μ , find x. (Lesson 8-3) b. If G is the midpoint of πΉπ» 36 b. _____________________ c. Use the value of x you found in part b to find the scale factor of β³EFH to β³JGH. (Lesson 7-3) c.______________________ 2:1 Chapter 8 70 Glencoe Geometry