SAS Triangle Congruence: Lesson

This SAS Triangle Congruence: Lesson video also includes:

SAS is not just a spy organization. A section of an extensive geometry playlist introduces a way to show two triangles are congruent, SAS. Using diagrams, the video provides an explanation by showing only one triangle is formed with two specific sides and a given angle 

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CCSS: Adaptable
Instructional Ideas

  • Develop a formal proof of SAS by using transformations
  • Provide struggling learners the opportunity to identify two sides and the included angle in several triangles
Classroom Considerations

  • Pupils should understand the definition of congruent triangles

  • Links to more SAS resources
  • Works several examples showing two triangles congruent using side-angle-side

  • None
Common Core