Warm-Up: January 31, 2023

Finding angles between intersecting lines

• 80

• 100

• 120

• 140

Finding angles between intersecting lines

• 15

• 17

• 73

• 27

Finding angles between intersecting lines

• 110

• 130

• 150

• 160

Finding angle measures using triangles

• 31

• 47

• 102

• 1222

Finding angle measures using triangles

• 39

• 66

• 75

• 105

Finding angle measures using triangles

• 39

• 75

• 105

• 115

Create equations to solve for missing angles

• (3x + 12) = x

• 3x = 180 + x

• (3x + 12) + x = 180

• (3x + 12) + x = 90

Create equations to solve for missing angles

• 30 - 2x = 90

• 30 + 2x = 180

• 2x = 30

• 2x + 30 = 90