1. Lesson 11

1.6. Explore 3

Module 2: Lesson 11

Module 2: Logic and Geometry

 

Try This 3
 

assignment

You will submit your answers for Try This 3 to your teacher for grading.

 

You can use the Lesson 11 Assignment that you saved to your course folder to complete Try This 3.

  1. Finish the calculation that Enrico started in the Door Design animation. Determine the measures of ∠DAO and ∠MAO in Enrico’s calculation. (5 marks)

     
    This illustration shows a regular pentagon labelled ADOME. Two additional lines are shown joining A to M and A to O. Angles EAM and EMA are marked as 36 degrees. Angles AEM is marked as 108 degrees.

     
    m2_eqn115.eps

     
    EA = ME (given)
     
    VMAE is isosceles.
     
    ∠MAE = ∠AME
     
    m2_eqn116.eps

     
    ∴ ∠MAE = 36 and ∠AME = 36

  2. How could congruent triangles be used to solve Enrico’s calculation? (5 marks)
Self-Check 5
 

textbook

Complete “Practising” question 16 on page 102 of your textbook. Answer

 

 


m20_2_notesorg.jpg

This is the last lesson in this module. As you have been progressing through each lesson, you have added to your Glossary Terms document and your notes organizer. At this point, you may find it helpful to refer to the “Mid-Chapter Review” on pages 34 and 84 of the textbook and the “Chapter Review” on pages 59 and 60 and pages 117 and 118 of the textbook.

 

The “Frequently Asked Questions” sections provide an overview of some of the concepts covered in this module. It would be useful to review these concepts as you will be incorporating them into your project in the next section.