Complete the table of ordered pairs for the equation:

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Need this asap if anyone can i would be very grateful. if you could show workings that would really

How do you use the elimination method for this question? explain, because i really want to understand!