EXTRA POINTS PLS HELP WILL MARK BRAINLIEST :)

1 is a parallelagram

Step-by-step explanation:

its a parallelogram because al the sides are equal and its leads to an positive angle measurement

Hopefully you have theorem names in your notes, most of these aren't EXACT.

1. Given

2. Don't know EXACT theorem, but seems to have to do with a definition of congruent angle segments.

3. they both match on opposite sides so they are congruent, don't remember theorem name

4. Don't remember this kind of supplementary angle but they are supposed to add up to 180 so something with 180 degree supplementary angle

5. Alternate interior angles (opposite sides while staying inside)

6. Alternate exterior angles

7. don't know name but has to do with the fact that 2/3 angles for the triangles are solved for BOTH and are the SAME, making them congruent.

8. don't know theorem name but the 2 angles make the same value on both segments.

9. same as #8

10. you could say these are parallel if the measurements of the inside figure are the same on top as on bottom. (don't remember theorem name)

11. Same here as #10 except now it's the whole segment.

12. Definition of either a Parallelogram or Rhombus, assuming Parallelogram, don't have exact measurements.

Step-by-step explanation:

I didn't do many proofs when I took Geometry because they're basically useless but... here it is again.