Things to Learn

  • Examine the definition and properties of congruence and related notation, that is, ≅.
  • Prove two figures are congruent through a sequence of rigid motions that maps one figure onto the other.
  • Explore the basic properties of congruence as similar to the properties for all three rigid motions (translations, rotations, and reflections).

Definition of Congruence and Some Basic Properties

Exercise and Practice

Showing Your Congruence