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perezvane04:
Match the reasons with the statements in the proof to prove DF = EF given that DEF is a triangle by definition and angles 3 and 4 are equal.
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Vocaloid:
Statement 1 is already given Statement 3 is using the fact that angles 3 and 4 are equal, plus he fact that angles 1 and 2 are supplementary to angles 3 and 4, which, as we stated before, are equal Statement 4 is making a conclusion about those two sides based on statement 3 Statement 2 gets the reason that hasn’t been used yet See what you can derive from this
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