Answer:
litrally I don't understand what you are telling
Yes. If the side lengths are different, you can end up with different angle measurements (example: SSA~ property. You can have two sides that are the same but you can make two different triangles with those side lengths and that one angle.)
answer: it would be one solution, becasue the variables are different and the constants dont matter, since the variables are different
3: independent
4: dependent