| Geometry and TrigonometryTrigonometry | 
| What are the same functions using a circle? | 
The following shows the same way of looking at the above triangle using a circle (also see illustration):
| Geometry and TrigonometryTrigonometry | 
| What are the same functions using a circle? | 
The following shows the same way of looking at the above triangle using a circle (also see illustration):