please help For each set of distances below, decide if the three points are collinear or form a triangle, or are impossible.

2. AB = 12, BC = 5, AC = 13 *

20 points

impossible

form triangle

collinear

3. AB = 11, BC = 3, AC = 7 *

20 points

impossible

form triangle

collinear

4. AB = 5, BC = 6, AC = 2 *

20 points

impossible

form triangle

collinear

5. AB = 8, BC = 1, AC = 9 *

20 points

impossible

form triangle

collinear