Given BD bisects AC and AB∥ CD , the Angle-Angle-Side (AAS) congruence theorem proves △ABE≅△CDE.
Given: AB ∥ CD and BD bisects AC .Proposition: △ABE≅△CDE
Proof:
Segment Bisector Property: Since BD bisects AC , we know that AD = CD . (Given)
Alternate Interior Angles Theorem: Since
AB ∥ CD and BD is transversal, we know that ∠ABE=∠CDE. (Corresponding angles)
Given: We are given that AB=CD.
AAS Congruence Theorem: By the Angle-Angle-Side (AAS) congruence theorem, we can conclude that △ABE≅△CDE. This is because we have two congruent angles (∠ABE=∠CDE) and a congruent side between them (AB=CD and AD=CD).
Conclusion: Therefore, we can prove that △ABE≅△CDE.