A student was given the following diagram and asked to prove that AX = XC. What would be the reason for the third step in the proof? - Please help!

Answer:
B. SAS triangle congruence
Step-by-step explanation:
Statement 1 said that a side and an angle were congruent in both triangles.
Statment 2 said that they share a line, thus making them equal.
So, a Side Angle Side(SAS)