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Lesson 2.6 • Special Angles on Parallel Lines Name Period Date For Exercises 1–3, use your conjectures to find each angle measure. 1. 2. 3. 54° a a a 65° b b 54° c d c b For Exercises 4–6, use your conjectures to determine whether !1 ! !2, and explain why. If not enough information is given, write “cannot be determined.” 4. 5. 6. !1 118° !2 62° 48° !1 95° 48° !2 25° !1 !2 7. Find each angle measure. 44° f 78° e 64° d c a b 8. Find x. 9. Find x and y. 4y ! 2" x 3x ! 160° 182" # 4x 5x ! 2" Discovering Geometry Practice Your Skills ©2008 Key Curriculum Press CHAPTER 2 15