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Which of the following equations is equivalent to y=4x-8 ? a.y=x-2 b. y=2x-4

3.5 warm-up 2. Which of the following equations is equivalent to y=4x-8 ? a.y=x-2 b. y=2x-4 c. 3y=12x-24 d. y / 2 =2x-16. 4.1 Congruent Figures. You will name and label corresponding parts of congruent polygons. You will justify and apply polygon congruence relationships.

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Which of the following equations is equivalent to y=4x-8 ? a.y=x-2 b. y=2x-4

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  1. 3.5 warm-up 2 Which of the following equations is equivalent to y=4x-8 ? a.y=x-2 b. y=2x-4 c. 3y=12x-24 d. y/2=2x-16

  2. 4.1 Congruent Figures You will name and label corresponding parts of congruent polygons You will justify and apply polygon congruence relationships Happy Thanksgiving

  3. First, we need to look at some things. What makes two items congruent?  All the corresponding sides are congruent.  All the corresponding angles are congruent. Pardekooper

  4. Labeling an angle or a side in correct order is very important. Lets see if you can do it. Pardekooper

  5. LMCBJK. Complete the following statements. BK LC_____ KJ_____ JB_____ L_____ K_____ M_____ CML_____ KBJ_____ MLC_____ JKB_____ CM ML B C J KJB CLM JBK MCL Pardekooper

  6. Lets label the congruent parts P L R N M Q N R NL RP L P LMPQ M Q NMRQ NLM RPQ Pardekooper

  7. Now it’s you turn to label all the congruent parts for the triangles. F S B C A T A C AS CF S F STFB T B TABC AST CFB Pardekooper

  8. There is a theorem. If two angles of one triangle are congruent to two angles of another triangle, then the third angle is congruent Pardekooper

  9. Remember all parts must be congruent. Next comes a proof. {Remember to label all of the given.} Given: PQPS, QRSR, QS, QPRSPR S R X P Prove: PQR PSR Q Statement Reason 1. Given 1. PQPS, QRSR 2. Reflexive 2. PRPR 3. QS, QPRSPR 3. Given 4. If 2 ’s are , then 3rd  is  4. QRPSRP 5. All parts  , figures are  5. QRPSRP Pardekooper

  10. What do you need to prove the following triangles congruent? 3rd pair of ‘s  3rd pair of sides  Pardekooper

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