Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Geometry Holt 4.4 Page 242 Notes 2.10B Recall from yesterday the two conjectures that you derived about the SSS triangle congruence shortcut and the SAS triangle congruence shortcut. SSS Conjecture: SAS Conjecture: Example: 1. Use SSS to explain why PQR PSR ***Remember: The Reflexive Property of Congruence was covered in Chapter 2 page 106. An included angle is________________________________________________________. In order for the SAS Conjecture to be valid, the angle chosen MUST be the one included between the two chosen sides! Not just any old angle will work! Examples: 2. The diagram shows part of the support structure for a tower. Use SAS to explain why XYZ VWZ. ***Remember: Vertical Angles are congruent was covered in Chp. 1& 2 pages 30 and 120. 3. Show that the triangles are congruent for the given value of the variable. UVW YXW, x = 3 Page 244 Example 3A You try…. Page 244 Example 3B 4. DEF JGH, y = 7 5. STU VWX, when y = 4 UT = y + 3 m T = 20 y + 12 ST = 2y + 3 UT = 4 + 3 m T = 20(4) + 12 ST = 2(4) + 3 UT = 7 m T = 80 + 12 ST = 8 + 3 m T = 920 ST = 11 T W ST VW UT WX So STU VWX by SAS 6. ** Page 244 Statements Reasons 1. 1. 2. 2. 3. 3. 4. 4. 5. 5.