unit circle and symmetry
- Author:
- Arthur Lee
- Topic:
- Circle, Symmetry, Trigonometry, Unit Circle
This set of 8 points on the unit circle demonstrate various relations among angles being symmetric about the axes or diagonal lines.
You can drag a point to change one marked angle and see how all other angles change while keeping certain relations. You may ask questions about how the x- and y- coordinates are related. As a result, you can figure out how the sine and cosine of these angles should be related.
