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Transcript
Bellringer: What do the letters CPCTC mean when proving triangles congruent? Bellringer: What do the letters CPCTC mean when proving triangles congruent? Corresponding Parts of Congruent Triangles are Congruent Daily Learning Target: “I can use the sides and angles of triangles congruent triangles to prove they are congruent.” Assignment: Pgs. 222-225 #2, 3, 22-24, 26-28 2. Statements: Reasons: 1. ABD≅CBD 2. BDA≅BDC 3. BD ≅ BD 1. Given 2. Given 3. Reflexive Property of Congruence 4. ASA 5. CPCTC 4. ∆ABD≅∆CBD 5. AB ≅ CB 3. Statements: Reasons: 1. OM ≅ ER 2. ME ≅ RO 3. OE ≅ OE 1. Given 2. Given 3. Reflexive Property of Congruence 4. SSS 5. CPCTC 4. ∆MOE≅∆REO 5. M≅R 22. 23. 24. 26. 27. 28. C J A ASA AAS The angles are 95 and 85 4.6 Hypotenuse-Leg Theorem Geometry Mr. Peebles Fall 2012 Hypotenuse-Leg (HL)Theorem: If the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the triangles are congruent. Closure – Whiteboards: List six (6) different ways to prove triangles congruent? Closure – Whiteboards: List six (6) different ways to prove triangles congruent? SSS AAS SAS CPCTC ASA HL