Hi there, I need help solving a proof.

I put all my answers in for the blank spaces, but number 4 I can't get. If someone could help that would be great. Thank you!

I've been trying to figure this out for the past two days and I'm honestly freaking out. My parents aren't home to help and when they are they're usually busy. I've tried the best I can, but I really need help.

Given: Triangle SVX is congruent to triangle UTX and Line SV is parallel to line TU.

Prove: VUTS is a parallelogram.

Statement : Reason.
1. Tri SVX is congruent to Tri UTX. Reason: Given.

2. Line SV is parallel to line TU.
Reason: Given

3. Line SV is congruent to line TV.
Reason: CPOCTAC.

4. VUTS is a parallelogram.
Reason: ?

For number four, I'm not sure what the answer is. can anyone help?

2 answers

Would it be, "Diagonals bisect each other?".
If diagonals bisect each other then it is true that you have a parallelogram.