Caroline drew two triangles and used them to construct a rhombus with two acute angles and two obtuse angles. Which could be

one of the triangles she used?

And there’s one triangle that not in the photo but the degrees are 30 and 60

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.