Answer: C. ∠BAT=∠CAT
Explanation:
- CPCTC is an acronym for corresponding parts of congruent triangles are congruent.
- CPCTC tells that if two triangles are congruent then the corresponding parts of the triangles are congruent.
If ΔBAT≅ΔCAT
Then its corresponding parts are equal such that:
∠BAT=∠CA, ∠ABT=∠ACT and ∠ATB=∠ATC
BA=CA , BT=CT and AT=AT
Therefore, C is the right answer.