Understanding Right Triangles

I really enjoyed what we did today, although i did not get all of it. The use of greek capitals like theta and beta confuses me, but i will probably get used to it later. I also learned the relationship between sin and cos. if I were to write a formula it would be something like sinX = cos(90-X). I also knew what pythagorean triples were, just not that they were called that. I remember that I had sub-consciously memorized some of them from last year. My favorite part of todays class was making the spreadsheet. Excel is a really coo program, and it can do alot more than I thought. In a way, you use it to write your own computer programs. I am looking forward to doing more work with it. As for AM, I still need to go back and work on a few objectives before I start on trig.