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Triangle Proportionality

Sides divided by a line parallel to the third side of a triangle.

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    Which Side is Proportional?
    Teacher Contributed
    \(\triangle{ABC}\) is similar to \(\triangle{DEF}\). Their sides are proportional. What is the correct value for the unknown in the following statement? \(\frac{?}{DE}\) = \(\frac{BC}{EF}\) = \(\frac{AC}{DF}\)
    qid: 100275

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