Answer:
Angle 1 = 37° (alternate angles)
Angle 2 = Angle 3 (alternate angles)
Angle 2 and 3 = 180 - 112
= 68° (sum of angles on a straight line)
Angle 4 = 180 - 37
= 143° (sum of angles on a straight line)
Angle 5 can be found using more than one method. I'm just going to show two here.
Method 1:
Angle 2 + Angle 5 + Angle 1 = 180° (sum of angles on a straight line)
68 + Angle 5 + 37 = 180
Angle 5 = 180 - 68 - 37
= 75°
Method 2:
Angle 5 + Angle 3 + 37 = 180° (sum of angles in a triangle)
Angle 5 + 68 + 37 = 180
Angle 5 = 180 - 68 - 37
= 75°