
Respuesta :
ΔABD ≅ ΔACD   CPCTC follows this step to complete the proof
AD ⊥ BC         already given information
ΔABD ~ ΔACD    this proves ratio, not congruency
AD = BC Â Â Â Â Â Â Â Â this might be a false statement, we only know that CD = DB
Answer: A) ΔABD ≅ ΔACD