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旋转性质:旋转角
Author:
月如
GeoGebra
New Resources
探究三角形的全等條件
百分數及其應用
折扣
撒针估算面积实验
双心四边形
Discover Resources
Test1
GGB動畫-會有圖案
骨牌
外心
阿波羅尼亞圓的副本
Discover Topics
Ellipse
Step Functions
Volume
Boxplot
Surface