Tuesday, December 7, 2010

6.6- Use Proportionality Theorems

When dealing with similar polygons, we see a lot of proportions that are formed.  Today we discussed Triangle Proportionality Theorem, Parallel Lines Proportionality Theorem, and the Angle Bisector and Opposite Ratio Theorem.

Tonight's homework is P. 400-401 #5,8,9,13,15, and 16.  Please bring either flashcards or your notebook to work on a new study project tomorrow in class.

For some challenging bonus material, check out this animation on fractals and how they use Proportionality Theorems:
http://www.classzone.com/cz/books/geometry_2007_na/resources/applications/animations/geom07_ch06_pg407.html
For more help on proportionality theorems, please watch these videos:
http://www.brightstorm.com/math/geometry/similarity/proportional-segments-between-parallel-lines
http://www.brightstorm.com/math/geometry/similarity/angle-bisectors-and-opposite-side-ratios

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