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Parallelogram by David Taub

Parallelogram by David Taub
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2016-09-16 20:33
Coordinate GeometryGeometric Construction
This example demonstrates the construction and area calculation of a parallelogram. Key mathematical concepts include the properties of parallelograms, angles, and line segments. Using GeoGebra commands such as Circle, Rotate, Segment, and Intersect, the transformation process of the parallelogram can be dynamically shown. Suitable for middle school and above students to learn geometric construction and area calculation.

GeoGebra Commands & Parameters

  1. Circle(A, sidoröd) → e
  2. Rotate(B, (-(rotera°)), A) → B'
  3. Angle(B', A, B) → α
  4. Segment(A, B') → f
  5. Intersect(e, f) → C,
  6. Segment(A, C) → g
  7. Circle(A, sidoblå) → h
  8. Rotate(C, vinkel°, A) → C'
  9. Angle(C, A, C') → β
  10. Ray(A, C') → i
  11. Intersect(h, i, 1) → D
  12. Line(D, g) → j
  13. Line(C, i) → k
  14. Intersect(j, k) → E
  15. Segment(A, D) → l
  16. Segment(D, E) → m
  17. Segment(E, C) → n