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Lesson 10

1. Lesson 10

1.10. Explore 6

Mathematics 20-2 M2 Lesson 10

Module 2: Logic and Geometry

 
Self-Check 4
 

textbook

Complete “Practising” questions 9, 10, 14, and 16 on pages 114 and 115 of your textbook. Answer

 

Try This 3
 

Use the applet Mark’s Proof to identify Mark’s error and correct the proof.

 

 

This is a screenshot for Mark’s Proof.

 

Self-Check 5
   

textbook

If you feel you need some more practice identifying and correcting errors in a proof, complete “Practising” question 11 on page 114 of your textbook. Answer

 

 


notes organizer
If you haven’t done so already, go to your notes organizer and organize your thoughts on proving that triangles are congruent. You might find it helpful to include a description of the sets of measurements required to establish congruency (e.g., SAS, SSS, ASA). Reading “In Summary” on page 112 of your textbook may be useful for helping to organize the key ideas of this lesson.