Respuesta :

Answer:

1/3

Step-by-step explanation:

a scale factor is basically comparing the lengths/width of a figure. the top of the figures are 1 (smaller figure) and 3 (bigger figure). then compare that and you get 1/3.

Answer:

3

Step-by-step explanation:

Side lengths of ABC: 4, 1

Side lengths of A'B'C': 12,3

4×3 = 12

1×3 = 3

3 is the scale factor of triangle ABC to triangle A'B'C'