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5.1 warm-up

5.1 warm-up. Suppose the line shown is translated 2 units to the left and 1 unit down. Which point would lie on the translated line ? a. (-2,-2) b. (-1,1) c. (0,2) d. (2,3). y. 3. 2. 1. -3 -2 -1 0 1 2 3 x. -3. 6.

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5.1 warm-up

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  1. 5.1 warm-up Suppose the line shown is translated 2 units to the left and 1 unit down. Which point would lie on the translated line ? a. (-2,-2) b. (-1,1) c. (0,2) d. (2,3) y 3 2 1 -3 -2 -1 0 1 2 3 x -3 6

  2. 4.7 Using Corresponding Parts of Congruent Triangles(CPCTC) You will use CPCTC to show parts of triangles are congruent.

  3. First things first ! You must prove that the two triangles are congruent by SSS, SAS, AAS, ASA, or HL. Once the triangles are congruent, then you can use CPCTC to show that the different parts are congruent.

  4. It’s time for a proof. Q P R T S Given: PSRS, PSQRSQ Prove: QPTQRT Statement Reason 1. PSRS, PSQ RSQ 1. Given 2. Reflexive 2. QSQS 3. SAS 3. PSQRSQ 4. PQRQ 4. CPCTC 5. PQTRQT 5. CPCTC 6. Reflexive 6. QTQT 7. SAS 7. PQTRQT

  5. It’s time for a proof. C B D X A E Given: CACE, BADE Prove: BXDX Statement Reason 1. CACE, BADE 1. Given 2. Isosceles  2. CAECEA 3. Reflexive 3. AEAE 4. BAEDEA 4. SAS 5. ABEEDA 5. CPCTC 6. Vertical ’s 6. BXADXE 7. AAS 7. BXABXA 8. BXDX 8. CPCTC

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