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zz.19
Author:
杜耀宗
GeoGebra
New Resources
第八周作业
撒针估算面积实验
圓的基本性質
第三周作业效果演示
平行線的判定
Discover Resources
onemove
畢氏定理動態證明(四塊直角三角形移動)
glt-h02-00-正方形折成三角錐
Angle in the same segment
平面截距式的副本
Discover Topics
Ellipse
Interest Calculation
Numbers
Rotation
Special Points