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I can use complementary, supplementary, and vertical angles. Lesson 2-8. m PQS. 44. 44 + 52. 52. = 96 °. E. F. G. 85 + 37. 85. H. 37. = 122 °. W. Z. X. 134. 134 – 49. Y. 49. = 85 °. linear pair. 180 °. right. complementary. 90 °. 115. 180 – 115. = 65 °.
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I can use complementary, supplementary, and vertical angles Lesson 2-8
44 44 + 52 52 = 96°
E F G 85 + 37 85 H 37 = 122°
W Z X 134 134 – 49 Y 49 = 85°
linear pair 180°
right complementary 90°
115 180 – 115 = 65°
20 90 – 20 = 70°
5x + 5 x - 5 25° 155° = 180 5x + 5 + x – 5 6x = 180 x = 30
10x 4x + 6 12x – 12 5x = 180 31x – 6 31x = 186 30° 30° x = 6 60° 60°
1 ≅ 3 2 ≅ 4 congruent
11x 10x + 10 110° 110° 70° 11x = 10x + 10 x = 10
43° 90° 47°
1. Given 2. Given 3. Def’n of Angle bisector 3. ∠AQB ≅ ∠BQC 4. ∠BQC ≅ ∠CQD 4. Def’n of Angle bisector 5. ∠AQB ≅ ∠CQD 5. Transitive
ASSIGNMENT: 2-8 worksheet, both sides Quiz tomorrow!