Match the reasons with the statements in the proof to prove AB || DC , given that AD is parallel to BC and AD = CB .

Given:

AD || BC

AD = CB

Prove:

AB || DC

1. AD || BC, AD = CB (A. If Lines are Parallel, then Alternate Interior Angles are Equal.)

2. AC = AC (B. If Alternate Interior Angles are Congruent, then Lines are Parallel.)

3. 2 = 3 (C. CPCTE)

4. ACD = CAB (D. Reflexive Property of Equality)

5. 1 = 4 (E. SAS)

6. AB || DC (F. Given)