Comparing the two parallelograms, which of the following is not necessarily true? Geometry 1 Answer Shwetank Mauria Jan 9, 2018 #D# is not necessarily true. When in two parallelograms, one angle of one is equal to one angle of another, although corresponding angles are equal, parallelograms may not be congruent as the sides may not be proportional. Answer link Related questions How do I determine the molecular shape of a molecule? What is the lewis structure for co2? What is the lewis structure for hcn? How is vsepr used to classify molecules? What are the units used for the ideal gas law? How does Charle's law relate to breathing? What is the ideal gas law constant? How do you calculate the ideal gas law constant? How do you find density in the ideal gas law? Does ideal gas law apply to liquids? Impact of this question 1007 views around the world You can reuse this answer Creative Commons License