Respuesta :

A would be "Because <2 is congruent to <4"

B would be "Definition of Supplementary Angles"

C would be "Subtraction Property"

These are a start, try to come up with them with the help of this

Answer:

  1. 70
  2. 110
  3. 180
  4. 70

Step-by-step explanation:

I hope this helps.