Intro to Triangle Congruence

50 Minute Class, Curriculum, Geometry

Learning Goal: Develop understanding of congruence by concluding that every point of each image can be matched up exactly with the other image.



  • Common Core
    • HSG.CO.B – Understand congruence in terms of rigid motions
  • TEKS
    • G.5(A) – investigate patterns to make conjectures about geometric relationships, including angles formed by parallel lines cut by a transversal, criteria required for triangle congruence, special segments of triangles, diagonals of quadrilaterals, interior and exterior angles of polygons, and special segments and angles of circles choosing from a variety of tools
    • G.6(C) – apply the definition of congruence, in terms of rigid transformations, to identify congruent figures and their corresponding sides and angles