HL Triangle Congruence: Lesson

This HL Triangle Congruence: Lesson video also includes:

Use the right congruence statement. The video introduces the Hypotenuse-Leg Theorem to prove two right triangles are congruent. Part of a geometry playlist shows that it does not matter which leg to use when proving congruence.

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Instructional Ideas

  • Lead a discussion on why though SSA does not work for triangles but HL does for right triangles
  • Determine whether there may be other short cuts for right triangles
Classroom Considerations

  • Pupils should be able to recognize the parts of right triangles
Pros

  • Contains a link to more resources using HL
  • Provides worked examples
Cons

  • None