I have an idea of the answer and my dh has a different answer. Keep in mind that we both have college degrees. :-/. Our answers differ based on our knowledge of rhombuses. Sad, I know. *meekly cries out for help*
ETA: I spoke with the teacher this morning. She said, "Rhombuses don't have 90 degree angles." I said, "But the argument I'm getting is that a rhombus CAN have 90 degree angles." To which she replied, "true, but then you just have a square." My face >> 😯. Well, ok then. :)
Thank you for all of your opinions and help.