Answer:
1) No. 2)No. 3)More than one, 4) Unique. 5)More than one. 6)More than one
Step-by-step explanation:
For the first two are not a triangle is because when adding the shortest two side of the triangle, it has to be longer than the longest one. 3) is because it only define 3 angles, but it can be different length, same for 5) and 6), then 4) is unique as the when defining 3 lines, it only has one combination, and the angles will be fixed.
