In the image attached, triangle ABC is congruent to triangle A'B'C' & AB is parallel to A'B' & BC is parallel to B'C'. How do I show that

1. AA'B'B is a parallelogram

2. BB'C'C is a parallelogram

3. Is AA' parallel to CC'. Why?

4. Is AA'C'C a parallelogram?

5. Is AC parallel to A'C'? Why?

I have got the first 2 but can't get the 3rd one. Can someone please help me with the 3rd one?

Thanks,

Ron