Final answer:
The triangles ΔAMD and ΔBMC can be proven congruent using the SAS (Side-Angle-Side) congruency theorem.
Step-by-step explanation:
The triangles ΔAMD and ΔBMC can be proven congruent using the
SAS (Side-Angle-Side)
congruency theorem.
Given that AM=MB, DM=MC, we have two pairs of congruent sides. We can also conclude that ∠ AMD = ∠BMC since they are corresponding angles. Additionally, we have the shared side AD.
Therefore, by the SAS congruency theorem, we can conclude that ΔAMD ≅ ΔBMC.