Today we're looking at more proportions between similar triangles. We'll have a quiz tomorrow, so keep those notes up to date and study tonight!

Read 6-5

After waking, Sally remembers she's in a strange town, in a stable. The roof of the stable is shaped the same as the roof of the inn next door. It has a short, steep side, and a long, shallow side. A vertical beam runs from the bottom to the top of each roof. If the stable's roof is 10 feet wide with a 6 foot beam, and the inn's roof is 25 feet wide, how tall is the inn's beam?

In 6-5, work problems 2-6 even, 12-18 even, 24-28 even, 34, and 40-46 even.

Extra Credit p. 324 # 1-5 – Sirpenski Triangles, an introduction to Fractals (you don't need to draw the triangles, if you can calculate in your head)

If you have time, check out these 3D fractals.

http://skytopia.com/project/fractal/mandelbulb.html

Additional Extra Credit: I'm planning on skipping Fractals. However, anyone interested may do 6-6 #4, 7-13 all, and 42 for a half an assignment's worth of extra credit.

FINALLY, if you do 6-6 first, you can also turn in a full-page fractal of your design (something iterative, at least mostly self-similar, and school appropriate) for another 5 points. It should include at least 5 stages.

## Tuesday, January 12, 2010

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