This week in advanced math we started in chapter seven. The section I understood the most was 7-1 Measurement of angles. We learned how to convert radians to degrees, and degrees to radians. We also learned how to find coterminal angles. I understood more the first week of school than the second week of school.

If given a number in radians to be converted into degrees, this is the formula: # x 180/pi

If given a number in degrees to be converted into degrees, this is the formula: # x pi/180

Example # 1: Convert 55 degrees to radians
1. Plug in to the formula 55 x pi/180
2. Treat pi as a variable.
3. You get 55pi/180
4. Divide 55/180
5. You get 11pi/180

Example # 2: Convert 3pi/4 radians to degrees
1. Plug into the formula 3pi/4 x 180/pi
2. The pi is treated as a variable and they cancel out.
3. You then get 540/4
4. Your answer is 135 degrees.

That is what I understood most in the past two weeks in this class. The key to understanding everything in this class is the formulas.