Question

How do I do this? I don’t understand

Answer 1

Explanation:

1. Statement: AB=CD; BC=AD

Reason: Given

2. Statement: BD=BD

Reason: reflexive property

3. Statement: triangleCBD= triangle ADB

Reason: angles are congruent to each other

4. Statement:∠ADB=∠CBD; ∠ABD=∠BDC

Reason: the corresponding parts of congruent angles are ≡

5. Statement: AB||CD; BC||AD

Reason: If alternate interior angles are congruent then lines are parallel