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Rotation Construction Demo

Rotation Construction Demo
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2019-02-16 02:00
AngleGeometric Construction
In collections Geometric Transformations with Geogebra
This example demonstrates geometric rotation construction without a protractor, requiring angle copying. It involves core concepts like angles, rotation, continuity, expected value, congruence, and circumcircle. The construction uses GeoGebra commands such as Segment, Rotate, Angle, with objects like points A, B, f, C, α, and interactive elements. Ideal for middle school and above, focusing on transformation and geometric construction skills.

GeoGebra Commands & Parameters

  1. Segment(A, B) → f
  2. Rotate(A, α, C) → target1
  3. Rotate(B, α, C) → target2
  4. Segment(target1, target2) → target3
  5. Segment(D, E) → g
  6. Rotate(E, α, D) → E'
  7. Angle(E, D, E') → β
  8. Segment(D, E') → h