By the definition of a , AD / BC and AB / DC.
Using, AD as a transversal, ZA and are same-
side interior angles, so they are
Using side as a transversal, ZB and Care
same-side interior angles, so they are supplementary.
Using AB as a transversal, ZA and B are same-side
interior angles, so they are supplementary.
Therefore, ZA is congruent to ZC because they are
supplements of the same angle. Similarly, ZB is
congruent to Z

What is the difference between the cultures of central asia and the caucasus region? the majority of people in central asia are muslim; the majority in the caucasus region are christian. the primary language in central asia is armenian; the primary language in the caucasus region is russian. central asia has been plagued by ethnic unrest; the caucasus region has had little ethnic conflict. the effects of soviet rule can still be seen in central asia; the caucasus region has developed its own identity since the fall of the ussr.