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正2
Author:
lzp80
GeoGebra
New Resources
正方形雪花图案
撒针估算面积实验
百分數及其應用
科赫雪花
比較五件物件的重量
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正9邊形
堆垛六顆鬼東西
圓與正三角形上動點連線上中點的軌跡
q5-11
畢氏定理(遮蔽法)
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Numbers
Cosine
Surface
Coordinates
Perimeter