1. What is a Unit Circle? A unit circle is a circle with a radius of one
Also known as the Wrapping Function
Equation: x^2+y^2=1

2. Trigonometric Properties
Hypotenuse of triangle = 1
Base of triangle = x = cosƟ
Height of triangle = y = sinƟ
Can you derive the properties?

3. Using the Unit Circle Set the motor turn 30 degrees.
How would we use the unit circle to find sin(30°)?
How would we use the unit circle to find cos(30°)?
Set the motor to turn another 60 degrees.
How would we use the unit circle to find sin(60°)?
How would we use the unit circle to find cos(60°)?
Do you notice any similarities?