Explanation:
I am going to assume that = sign should be the ≅.
For the Statements :
1. AB=DC
AB ll DC
2. Line AC is the transversal of AB and CD
3. Angle BAC ≅ Angle DCA
4. Angle BCA ≅ Angle DAC
5. Line AC=Line AC
6. Triangle ABC ≅ Triangle CDA
For the Reasons:
1. Given
2. Definition of a transversal
3. Alternate Interior Angles
4. Alternate Interior Angles
5. Reflexive Property
6. ASA