Respuesta :

Answer: 7) isosceles 8) scalene 9) congruent 10) scalene 11) isosceles 12) congruent

Step-by-step explanation: Scalenes have two matching sides, congruent has all matching sides, and scalene has no matching sides :)

9: equilateral
8: scalene
7: isosceles
10: scalene
11: isosceles
12: equilateral

sorry if i'm wrong <3