We have all of our angles and important places on our Unit Circle from examining degrees.
Now we simply convert degrees into radians by remembering that 360 degrees is equal to 2 pi.
If you want, you can take the time to convert each degree value into radians; however, it is simpler to remember the equivalents of 30 and 45 degrees and count around the circle with radians just as we did for degrees.
Now we simply convert degrees into radians by remembering that 360 degrees is equal to 2 pi.
If you want, you can take the time to convert each degree value into radians; however, it is simpler to remember the equivalents of 30 and 45 degrees and count around the circle with radians just as we did for degrees.
As you watch the following video you will understand the radian measurements as reduced fractions which produces the following Unit Circle with all our angles measured in radians as follows:
Before moving on to the coordinates themselves, you may find it helpful to understand the relationship between the coordinates and the sine and cosine functions as they specifically relate to the Unit Circle in the section Sine & Cosine.
If you feel comfortable already with the relationships to the Unit Circle of Sine & Cosine, you may wish to move forward to coordinates.