Parallelogram (pgram)

Given: Quadrilateral ABCD is a parallelogram (pgram) A'B'C'D' is a congruent copy made just to highlight other measurements regarding the diagonals. You can change the pgram with A, B, and C to see whether your characteristics hold true for all pgrams.
Determine characteristics of a pgram. Be descriptive enough about these characteristics; the sentence stem below can be used as a guideline. (#) (consecutive/opposite) (sides/angles) are (characteristic). Characteristics to consider: - Parallel or perpendicular - Congruent - Supplementary Also consider characteristics of the diagonals.