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

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

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?