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Answer:

oof this is hard, soo i'd say the answer is EC:EA because for example, EA:EC got bigger instead of smaller so thats not it.

Maybe this'll help you understand it  

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wegnerkolmp2741o

Answer:

EC / EA

Step-by-step explanation:

We can use ratios of similar triangles to solve

Taking the new image over the original image

EC           DC

-------- = ----------

EA            BC

This is also the scale factor

EC / EA

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