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Unit 2B Study Guide Classify each triangle as acute, equiangular, obtuse, or right.29732653600152856426237721248135999 1. 2. 3. 292051134437521530425644177312344364. 5. 6. 4749312125584Classify each triangle as equilateral, isosceles, or scalene.7. △ABE8. △EDB9. △EBC10. △DBC67847240537411. ALGEBRA Find x and the length of each side if △ABC is an isosceles triangle with AB ? BC.12. ALGEBRA Find x and the length of each side if △FGH is an equilateral triangle.6520968406313. ALGEBRA Find x and the length of each side if △RST is an isosceles triangle with RS ? TS.14. ALGEBRA Find x and the length of each side if △DEF is an equilateral triangle.4239359-23453179881502Finding angles and sides: Solve for x.15. 16. 17. 2400300133985400002000018. 19. 20. 21. 22. Write a congruence statement to show that the triangles are congruent. 5373370330202929304333623091965094623.24. 25. 3619506457430699815578254966581182026.27.28. Determine which postulate can be used to prove that the triangles are congruent. If it is not possible to prove congruence, write not possible.49928321517654762502574627622501189229. 30.31. 32. 33. 34. 3238500149225PROOFS: Write a 2 column proof for problems 35-38.35. Given: ∠N ? ∠LJK ? MKProve: △JKN ? △MKL31718259461536. Given: AB ? CB∠A ? ∠CDB bisects ∠ABC.Prove: AD ? CD3238500-7737. Given: DE ∥ FG∠E ? ∠GProve: △DFG ? △FDE26444866084538. Given: RS ? TSV is the midpoint of RT.Prove: △RSV ? △TSVCOORDINATE GEOMETRY Graph each pair of triangles with the given vertices. Then identify the transformation, and verify that it is a congruence transformation.51602738253839. A(?3, 1), B(?1, 1), C(?1, 4);40. Q(?3, 0), R(?2, 2), S(?1, 0);104775237490D(3, 1), E(1, 1), F(1, 4)420969121173100Determine the slope of the line that contains the given points.41. B(–4, 4), R(0, 2) 42. I(–2, –9), P(2, 4)Find the slope of each line.43. LM 44. GR45. A line parallel to GR 46. A line perpendicular to PS46317627337300Write an equation in slope-intercept form for each line shown or described.47. b48. c49. Parallel to line b, contains (3, –2)50. Perpendicular to line c, contains (–2, –4) ................
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