Reinhold Yen – Resources – GeoGebra

圓_Collection
Book
Reinhold Yen
相似形_Collection
Book
Reinhold Yen
全等形_Collection
Book
Reinhold Yen
相似形應用_進階_Collection
Book
Reinhold Yen
相似形_Tasks_Collection
Book
Reinhold Yen
三角形的外心
Activity
Reinhold Yen
高斯符號(floor)
Activity
Reinhold Yen
Copy of Unit Circle - exact values
Activity
Reinhold Yen
找根／判別正負區_Task
Activity
Reinhold Yen
SSA作圖特例_直角三角形
Activity
Reinhold Yen