1. Chapter 4 Congruent Triangles Objective: 1) To recognize  figures & their corresponding parts

2. R P Q A B C A  P B  Q C  R AB  PQ BC  QR CA  RP If ABC  PQR then find the corresponding parts CPCTC Theorem C C PT C orresponding arts ongruent riangles ongruent in are

3. ΔABC  ΔPQR AB  PQ BC  QR CA  RP B C A Q R P A  P B  Q C  R

4. ΔABC  ΔADC AB  AD BC  DC CA  CA B C A A  A B  D C  C D

5. ΔABC  ΔEBD AB  EB BC  BD CA  DE B C A A  E B  B C  D D E

6. Theorem If 2 angles of one triangle are congruent to 2 angles of another triangle, then the third angles are also congruent. Given:  B   E  A   D then:  C   F A B C D F E

7. A C B P R Q ΔABC  ΔPQR 20 52 8 4 6 A  P 20 AB  PQ 4 BC  QR 8 ? ? ? ? R = 180 – (20 +52) = 108 108

8. In the diagram,  TJM   PHS. Complete the statement. 1.  P  3. m  M = m  S 2. m  P = 5. MT = 73  T 73 48 59 5 cm 59 48 4. m  J =

9. Find the value of x. ΔABC  ΔDEF 70  C   E

10. Write a congruence statement for these figures that can be proved congruent. ΔGDE  ΔEFG ΔYXW  ΔYZW