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Author:
Mr CHANG
GeoGebra
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平行線的判定
折扣
正方形雪花图案
盈利與虧蝕
百分數及其應用
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阿波羅尼斯相關問題：與兩相切圓外切和一圓內切
Graph of Sine Function 正弦函數圖像
Triangles with the same height
The change in measure in statistics after adding a constant
sin(x) 的函數圖形的副本
Discover Topics
Cuboid
Rhombus
Statistics
Vectors 3D (Three-Dimensional)
Percentages