Question

Given: Angle 2 and Angle 3 are a linear pair. Angle 3 and Angle 4 are a linear pair. Prove Angle 2 is congruent to Angle 4.

Answer 1

Reason 2 is that they are linear, so they form 180 degrees, which makes them supplementary. Reason 3 is that they are both 180 - angle 3. I think. I'm not sure about reason 3.