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Triangle Reflection Task

Triangle Reflection Task
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2018-07-01 09:12
TriangleTransformationGeometric Construction
This example demonstrates the reflection of a triangle. Key mathematical concepts include reflection transformation. Using GeoGebra commands such as Point, Line, Polygon, Mirror, etc., a triangle and its reflection can be constructed. Suitable for middle school and above students or teachers.

GeoGebra Commands & Parameters

  1. Point(yAxis) → A_1
  2. Point(yAxis) → B_1
  3. Line(A_1, B_1) → c
  4. Polygon(C, A, B) → poly1, e, c_1, d
  5. Mirror(C, c) → C'
  6. Mirror(A, c) → A'
  7. Mirror(B, c) → B'
  8. Polygon(C', A', B') → poly1', b', c', a'
  9. Point(xAxis) → D
  10. Point(xAxis) → E
  11. Line(D, E) → f
  12. Mirror(C, f) → C'_1
  13. Mirror(A, f) → A'_1
  14. Mirror(B, f) → B'_1
  15. Polygon(C'_1, A'_1, B'_1) → poly1'_1, b'_1, c'_1, a'_1