Dynamic Circles

Dynamic Circles
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2013-06-08 10:50
This example demonstrates movable circles. It involves basic properties of circles and geometric transformations. Using GeoGebra commands such as Segment, Point, Circle, Mirror, and Intersect, you can intuitively understand the symmetry and intersections of circles. Suitable for middle school and above students to learn geometric construction and transformations.

GeoGebra Commands & Parameters

  1. Segment(B, A) → a
  2. Point(a) → C
  3. Circle(B, C) → c
  4. Circle(A, C) → d
  5. Mirror(B, C) → B'
  6. Mirror(C, B') → C'
  7. Circle(B, B') → e
  8. Circle(B, C') → f
  9. Mirror(C, B) → C'_1
  10. Circle(A, B) → g
  11. Circle(A, C'_1) → h
  12. Intersect(f, h) → D, E, ,
  13. Hyperbola(B, A, E) → k

AI Drawing Prompt Reference

Draw a movable circle with points A and B as centers and point C as radius for circles c and d. Then reflect points B' and C' with B and C as axes, and draw circles e, f, C'_1, and g with B, B', C, and B' as centers respectively. Finally, draw a hyperbola k with foci B, A, and E.
The prompt above was compiled from the original drawing commands and is for reference only.