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Rotation (2,3)
Author:
amn
GeoGebra
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百分數及其應用
正方形雪花图案
异形操场
三角函数 的副本
平行線的判定
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Tessellations
教學－旋轉
分數(二)
進步公式
滑桿
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Probability
Rectangle
Diagrams
Parallelogram
Geometry