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Variable Perimeter

Variable Perimeter
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2017-10-05 17:45
Coordinate GeometryGeometric Construction
This example demonstrates the dynamic behavior of perimeter changes by adjusting geometric elements. Key math concepts include perimeter calculation, straight lines, midpoints, intersections, and diagonals. Construction involves commands like Segment, Point, OrthogonalLine, Intersect, and Midpoint in GeoGebra to create and manipulate geometric figures dynamically. Suitable for high school students to explore the properties of polygon perimeters in a dynamic setting, ideal for geometry instruction.

GeoGebra Commands & Parameters

  1. Segment(A, B) → f
  2. Point(f) → C
  3. OrthogonalLine(C, f) → g
  4. Point(g) → D
  5. Segment(A, C) → h
  6. Segment(C, D) → i
  7. OrthogonalLine(D, i) → j
  8. OrthogonalLine(A, h) → k
  9. Intersect(j, k) → E
  10. Segment(A, E) → l
  11. Segment(E, D) → m
  12. Midpoint(A, C) → F
  13. Midpoint(C, D) → G