Answer :
Answer:
Quadrilateral DEFG has only one set of opposite angles that are congruent.
and
Quadrilateral DEFG has one set of opposite sides that are both congruent and parallel.
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Answer: both Quadrilateral DEFG has only one set of opposite angles that are congruent and Quadrilateral DEFG has one set of opposite sides that are both congruent and parallel.
Step-by-step explanation: