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Mathematics 14 Online
RichVibbing:

help fast pleaseeee

RichVibbing:

RichVibbing:

@Aeon @Vocaloid help pleaseeeee

ratnakermehta20:

Recall from Geometry that the corresponding sides of similar triangles are proportionate. Hence, [EF/BC=DE/AB=4. So, EF=4BC=4[\sqrt{(-1-3)^2+(2-1)^2}]=4\sqrt{17}.]

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