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GeoGebra
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GeoGebra
GeoGebra Classroom
GeoGebra
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Clockwise Rotation (3,-4)
Author:
amn
GeoGebra
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活动三:应用性质
撒针估算面积实验
第八周作业
第八周作业2
常见四边形是否是双心四边形
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test03繪本用
三視圖3d眼鏡
Parabola_Vertical
橢圓1--同心圓法
橢圓1--四圓心近似法
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Special Points
Square
Function Graph
Centroid or Barycenter
General Quadrilateral