Question

Line AB is congruent to CD and BC is congruent to AD. What theorem tells you that ABCD is a parallelogram?

Answer 1

a) if both pairs of opposite sides are congruent, the quadrilateral is a parallelogram.
b) if 2 sides are both parallel and congruent, the quadrilateral is a parallelogram.
c)If the diagonals bisect each other, the quadrilateral is a parallelogram.

Answer 2

oh nevermind this question, it's a