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Splash Screen. You will be able to… test for triangle congruence using the SSS Postulate. test for triangle congruence using the SAS Postulate. Then/Now. Concept 1. CPCTC-. Then/Now. ___. ___. ___. ___. Given: QU  AD , QD  AU. Use SSS to Prove Triangles Congruent.

jolie-farley
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  1. Splash Screen

  2. You will be able to… • test for triangle congruence using the SSS Postulate • test for triangle congruence using the SAS Postulate Then/Now

  3. Concept 1

  4. CPCTC- Then/Now

  5. ___ ___ ___ ___ Given: QU AD, QD  AU Use SSS to Prove Triangles Congruent Use SSS to explain why ΔQUD ΔADU Example 1

  6. ___ ___ ___ Given: AC ABD is the midpoint of BC.Use SSS to explain why ΔADC  ΔADB Example 1 CYP

  7. Included angle- Then/Now

  8. Concept 2

  9. ENTOMOLOGY The wings of one type of moth form two triangles. Use SAS to explain how ΔFEG ΔHIG if EI FH, and G is the midpoint of both EI and FH. Use SAS to Prove Triangles are Congruent Example 3

  10. Use SAS to explain howΔABG ΔCGB if ABG  CGB and AB  CG. Example 3

  11. Use SAS or SSS in Proofs Write a paragraph proof. Prove: Q  S Example 4

  12. Write a paragraph proof. Example 4

  13. End of the Lesson

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