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Author:
洪馷孺
GeoGebra
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異分母分數減法
錐體建築師
四邉形 (四年級) 教師版
判斷球體
球体的体积推导(优化版)
Discover Resources
三角形外角和為360度
橢圓與雙曲線折紙
sincos
歐幾米德多面體(四邊形與六邊形-進階版)
十六菊
Discover Topics
Constructions
Cosine
Special Points
Linear Functions
Cylinder