Respuesta :

Answer:

1/6

Step-by-step explanation:

Side AB * scale factor = Side DE

72* scale factor = 12

Divide each side by 72

scale factor = 12/72

scale factor = 1/6

Answer:6

Step-by-step explanation: 72 is 6 times larger than 12, 66 is 6 times larger than 11, 42 is 6 times larger than 7

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