1. Lesson 1-5 I can identify and use special pairs of angles I can identify perpendicular lines

2. 2 angles with a sum of 90° 2 angles with a sum of 180° 40° 50°

3. 2 angles that share a vertex and side 2 adjacent angles that make a line

4. 2 non-adjacent angles formed by intersecting lines 1 2 3 4

5. adjacent adjacent,linear pair vertical adjacent

7. supplementary, adjacent and linear pair

8. complementary

9. lines that intersect to form right angles A B X Y ┴ AB XY

10. 9x + 5+ 3x + 1= 90 12x + 6 = 90 12x = 84 x = 7

11. 3x + 10 x 25 x+ 3x + 10= 90 4x + 10 = 90 4x = 80 x = 20 20 70 20 70 65

12. x 2x + 21 x+ 2x + 21= 90 3x + 21 = 90 3x = 69 x = 23 23 67 23° and 67°

13. ASSIGNMENT: Lesson 1-5 worksheet Skip #8, 9, 10, and 13 Quiz on Wednesday (1-4 and 1-5) Test on FRIDAY!