Respuesta :
Answer: SAS postulate will be use to prove Δ ABD ≅ ΔCBD
Step-by-step explanation:
Here, In ΔABC line segment BD is the perpendicular bisector of line segment AC,
Therefore, BD ⊥ AC and, AD=DC
Thus, In triangles ABD and CBD,
AD≅DC ( given)
∠ADB≅∠CDB ( Right angles)
BD≅BD ( Reflexive)
Therefore, By SAS postulate of congruence,
Δ ABD ≅ ΔCBD.