Day 13

Math 444, Wednesday, 10/26
Sponsor Today's class is brought to you by Pi.
Topics Areas of similar figures. Areas and shears. Also areas of regular polygons and circles.
Class Schedule
  • Area by approximating by squares inside.
  • The effect of scaling on area -- change by k^2
  • Example of triangle follows also from formula.
  • Define Pi as area of a unit circle.
  • Scaling gives general area formula (Pi)r^2.
  • Shearing a triangle
  • Shearing the whole plane -- this does not change area.
  • Area of regular polygon in terms of inradius (apothem) and perimeter.
  • Application to circumference formula for circles.
Assignments
New

Reading Assignment (due Friday 10/28)

Review BB chapters, class notes and labs.

Assignment 6 (Due Wednesday, 11/2)
Due Today

Assignment 5

Ongoing

Construction Portfolio #3 (Due Monday 10/31)

Quiz 2 Friday -- See test page for study questions

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