Congruence of Triangles

  • Antonio Caminha Muniz Neto
Part of the Problem Books in Mathematics book series (PBM)


This chapter is devoted to the study of the usual sets of necessary and sufficient conditions for two triangles to be considered the same, in a sense it will soon be made precise. We also discuss here the important fifth axiom of Euclid (known as the axiom of parallels), as well as several interesting and important consequences of it, most notably the triangle inequality. Finally, in the last section of the chapter, several special types of quadrilaterals will make their first appearance.


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Antonio Caminha Muniz Neto
    • 1
  1. 1.Universidade Federal do CearáFortalezaBrazil

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