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Determine whether the conclusion is valid. If not, identify the additional information needed to make it valid.


Given: DE∥GF , EF∥DG


Conclusion: DEFG is a rhombus.

Determine whether the conclusion is valid If not identify the additional information needed to make it validGiven DEGF EFDG Conclusion DEFG is a rhombus class=

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Answer:

Not valid: DF is perpendicular to EG (2nd)

Step-by-step explanation:

Not all parallelograms whose opposite sides are parallel is a rhombus. A rhombus's special characteristic is that their diagonals are perpendicular to each other.

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