SME
Grade 10 Math

Congruent triangles: SSS, SAS, ASA, AAS and HL

The main lesson, then each kind of problem it solves.

Congruent triangles: SSS, SAS, ASA, AAS and HL

Main lesson
Congruent parts with an unknown
Use this for “△ABC ≅ △DEF, AB = 3x + 2 and DE = 2x + 8. Find x and AB.”
△ABC ≅ △KLM: must it be true?
Use this for “△ABC ≅ △KLM. Which parts must be congruent?”
Prove two segments congruent
Use this for “M is the midpoint of PQ and of RS. Prove PR ≅ QS.”
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