Understand the definition of degree as it relates to the circle. (0406.4.2)

Links verified on 11/10/2011

1. Degree (Angle) - this Wikipedia article includes some thoughts as to why 360 was used as the number of degrees in a circle
2. Degrees - Adjust the angle by dragging the orange dots at Q and R. Notice the number of degrees for any particular angle
3. Degrees in a Circle - the Math is Fun explanation includes a good animation and a reference to two types of protractors
4. Properties of a Circle - from Math Forum
5. Why is a Circle 360 Degrees? - get the answer from Dr. Math
6. Why is a Circle Defined as 360 Degrees? - another answer from Dr. Math with more information about pi

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