Warm up Copy the diagram, then list all pairs of angles that fit the description. a. b. c. d. e. f. Corresponding Alternate Interior Alternate Exterior Same-Side Interior Vertical Linear Pair 5 4 6 3 7 2 1 8 t Powerpoint hosted on www. worldofteaching. com Please visit for 100’s more free powerpoints
Corresponding 4 and 2 3 and 1 5 and 7 6 and 8 5 4 6 3 7 2 1 8 t
Alternate Interior 3 and 7 2 and 6 5 4 6 3 7 2 1 8 t
Alternate Exterior 5 and 1 4 and 8 5 4 6 3 7 2 1 8 t
Same-side Interior 3 and 2 6 and 7 5 4 6 3 7 2 1 8 t
Copy the diagram, then find all the missing angle measures t 1131 67 672 3113 1135 67 8 67 6 113 7 180 - 67
CHAPTER 3 LINES AND ANGLES Part II: Equations
Alternate Exterior Angles • Name the angle relationship • Are they congruent or supplementary? • Find the value of x t 125 5 x = 125 5 5 x = 25
Corresponding Angles • Name the angle relationship • Are they congruent or supplementary? • Find the value of x t 2 x + 1 151 2 x + 1 = 151 -1 -1 2 x = 150 2 2 x = 75
Same-Side Interior Angles • Name the angle relationship • Are they congruent or supplementary? supp • Find the value of x t 81 7 x + 15 + 81 = 180 7 x + 96 = 180 - 96 7 x = 84 7 7 x = 12
Alternate Interior Angles • Name the angle relationship • Are they congruent or supplementary? • Find the value of x t 3 x 2 x + 20 = 3 x - 2 x 20 = x