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GeoGebra
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内凹的正方形
Author:
叶明杰
GeoGebra
New Resources
科氏力 (Coriolis Force)
比較五件物件的重量
第八周作业1
百分數及其應用
第八周作业
Discover Resources
商高定理4
等腰三角形內嵌矩形
平移動畫（平移加滑桿）
分水問題
林辰洋 凹面鏡反射
Discover Topics
Polynomial Functions
Pythagoras or Pythagorean Theorem
Ellipse
Arithmetic Operations
Circumcircle or Circumscribed Circle