Question

Which statements prove that a quadrilateral is a parallelogram?

Select each correct answer.


a. Quadrilateral DEFG has two sets of consecutive angles that are complementary.

b. Quadrilateral DEFG has one set of opposite sides that are both congruent and parallel.

c. Quadrilateral DEFG has opposite angles that are congruent.

d. Quadrilateral DEFG has diagonals that are congruent.

Answer 1

Quadrilateral DEFG has one set of opposite sides that are both congruent and parallel.

Quadrilateral DEFG has two sets of consecutive angles that are supplementary.

Explanation:

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