Instructional Video

Khan Academy: Geometry: More on Why Ssa Is Not a Postulate

Curated by ACT

Explains why SSA is not a valid postulate for proving triangle congruence. Practice problems available. This video [7:24] also appears in the Geometry: Triangles strand.

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CCSS: Adaptable
Concepts
congruent triangles
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Additional Tags
side-side-angle, triangle congruence postulates, khan academy, khan academy math, ssa postulate
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Classroom Considerations
  • Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)
Common Core
HSG-CO.B.7 HSG-CO.B.8