Answer:
opposite sides of a parallel are congruent.
Step-by-step explanation:
the symbol between AB and DC stands for "equal to", not parallel. boom roasted. (don't hate me if I'm wrong)
A is 5,6 that is the answer for A gotta go but maybe someone else can help with the other ones
If two positive angles have a sum of 180 degrees, they are called supplementary angles.