Which of the following statements is not always true?

a. in a parallelogram, the diagonals are congruent.
b. in a parallelogram, both pairs of opposite sides are parallel.
c. in a parallelogram, both pairs of opposite sides have the same length.
d. in a parallelogram, the diagonals bisect each other

100 53. how have developed western countries affected non-western developing nations during the modern period? explain how three political, economic, and/or cultural approaches by european and other western countries shaped the developing world over the last 250 years. use examples from your studies to support your ideas and opinions.