Еднакви триъгълници

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您可以只下載 .ggb 檔，或下載網頁版給學生用。

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• 離線版活動 (.zip)

• GeoGebra 檔

  1. 圖檔 1 (.ggb)
     
  2. 圖檔 2 (.ggb)
     
  3. 圖檔 3 (.ggb)
     
  4. Drag any point on triangle ABC to resize the triangle. Study what happens to triangle EDF when you resize triangle ABC. Also try to coincide (put one triangle on top of the other) and see if (.ggb)
     
  5. 圖檔 5 (.ggb)
     
  6. Drag any point on triangle ABC to resize the triangle. Study what happens to triangle DEF when you resize triangle ABC. Also try to coincide (put one triangle on top of the other) and see if (.ggb)