Question

Which information is not enough to prove quadrilateral ABCD is a parallelogram?

Answer 1

To prove :

ABCD is a parallelogram

For parallelogram, if one pair of opposite sides of a quadrilateral are congruent and parallel then the quadrilateral is a parallelogram.

Thus, in option (2) their is not enought information to prove that ABCD is a parallelogram because AB and CD are given congruent but not given parallel.

Similarly, BC and DA are given congruent but not given parallel.

So, the correct option is (2)