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GeoGebra
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Author:
John Tsang
GeoGebra
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百分數及其應用
直線的斜率：水平變化 & 鉛垂變化
双心四边形
第三周作业效果演示
折扣
Discover Resources
正方體及正四面體的對稱性質
test
物件顯示條件
不規則多邊形塗色
Copia lui Easter egg
Discover Topics
Trigonometry
Geometric Transformations
Rhombus
Cube
Linear Programming or Linear Optimization