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和角證明
Author:
RintarouTW
GeoGebra
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活动三：应用性质
撒针估算面积实验
科赫雪花
比較五件物件的重量
盈利與虧蝕
Discover Resources
「相似三角形」任务1
Task 7: Visualize the Theorem of Thales
test
圓錐節痕
旋转多边形
Discover Topics
Congruence
Percentages
Translation
Mathematics
Parametric Curves