Math 444/487 Geometry Week 5

Monday 10/27 - Friday 10/31
    444 Home Page

  1. Week 1: 9/29-10/03

  2. Week 2: 10/06-10

  3. Week 3: 10/13-17

  4. Week 4: 10/20-24

  5. Week 5: 10/27-31

  6. Week 6: 11/03-07

  7. Week 7: 11/10-14

  8. Week 8: 11/15-21

  9. Week 9: 11/24-28

  10. Week 10: 12/01-05

  11. Week 11: 12/08-12

Math 444 JSP Page

Monday 10/27 444

  • Golden rectangles: Cut Similar rectangle and square
  • Regular Pentagons and golden ratio
  • Constructing square roots and golden ratio
  • Paper folding golden rectangles.
  • Link for class notes for these topics on golden ratio
Assignment
  • Assignment 4B due today
  • Assignment 4C due Wed 10/29
  • Read B&B Chapter 5. Also, B&B, pp. 191-4, shows a way to construct a regular pentagon given the center of the circumscribed circle and a vertex. It is different from what we did so far, but you can see the golden triangle from 4B at a critical point.

Wednesday 10/29 444

Wednesday 10/29 487 Lab 5

  • Dilations, negative ratios, and trapezoids
  • Common tangents
  • Constructions and loci

Friday 10/31 444

Midterm Test (50 minutes).

  • Test will cover material through Wed 10/29. In particular, this is all of B&B Chapters 1-5 + Locus Chapter and Constructions. Also see labs, GTC, class notes. From Brown, definition of line and point reflection.
  • Some Study Questions
  • Copy of test is linked to Test Page
  • There is NO ASSIGNMENT Due Monday 11/3.
  • Assignment 5 due Wed 11/5.