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15. What statement best satisfies the AB and CD in a parallelogram DABCD?
a. They are parallel.
b. They are congruent.
c. They are both parallel and congruent.
d. Their opposite angles are congruent.​


Sagot :

Answer:

i think letter C. They are both parallel and congruent.

Answer:

A

Step-by-step explanation:

  1. beCareful fand fand and you know how you want it to be a person that can be the worst thing