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Circumference of Circle with Radius r=1 Unit Animation

Circumference of Circle with Radius r=1 Unit Animation
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2020-05-27 01:14
CircleGeometric ConstructionSlider Animation
This example demonstrates the circumference of a circle with a given radius r=1 unit. Key mathematical concepts include the calculation of a circle's circumference. Using GeoGebra commands such as Point, Segment, Circle, Rotate, Intersect, and CircleArc, the example dynamically shows the change in the circle's circumference. Suitable for students at the middle school level and above to learn about the basic properties of circles and circumference calculation.

GeoGebra Commands & Parameters

  1. Point(yAxis) → A
  2. Point(Circle[A, (2 * π)]) → B
  3. Segment(A, B) → f
  4. Point(f) → C
  5. Circle(C, 1) → c
  6. Point(c) → D
  7. Rotate(D, (-a), C) → D'
  8. Intersect(xAxis, yAxis) → E
  9. Segment(E, D) → g
  10. CircleArc(C, D, D') → d