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Trapezoid Drag Demonstration

Trapezoid Drag Demonstration
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2017-05-20 01:37
PolygonCoordinate Geometry
This example demonstrates the properties and variations of a trapezoid through dragging, involving core math concepts like polygons, coordinate geometry, and geometric construction. It uses commands such as Join, Point, Line, Ray, Polygon, Segment, Intersect, Distance, and Midpoint. Suitable for high school mathematics education to understand trapezoid characteristics and dynamic geometric relationships.

GeoGebra Commands & Parameters

  1. Join(Sequence[Sequence[(i, j), i, -7.3, 7.8, 0.1], j, -4, 2.6, 0.1]) → GridSpace
  2. Point(GridSpace) → B
  3. Point(GridSpace) → A
  4. Line(A, B) → ABline
  5. Point(GridSpace) → D
  6. Line(D, ABline) → CDline
  7. Point(CDline) → E
  8. Ray(D, E) → DEray
  9. Point(DEray) → C
  10. Polygon(A, B, C, D) → Trapezoid, f, g, h, i
  11. Segment(D, B) → DB
  12. Segment(A, C) → AC
  13. Intersect(AC, DB) → O
  14. Distance(D, O) → DOlength
  15. Distance(A, O) → AOlength
  16. Distance(B, O) → BOlength
  17. Distance(C, O) → COlength
  18. Midpoint(A, O) → AOpoint
  19. Midpoint(B, O) → BOpoint
  20. Midpoint(D, O) → DOpoint
  21. Midpoint(C, O) → COpoint
  22. Segment(D, C) → DC