Diameter and Circumference of a Circle
- Tanja Wassermair, cemccourseware
Measure the circumference of the circle by unrolling it into a straight line. Explore the relationship between the circumference and the diameter of the circle.
- Drag the center of the circle to unroll it. Change the diameter using the point on the circle.
- Drag the slider to find out how many times the diameter fits in the circumference.