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橢圓
Author:
shan chun
Topic:
Ellipse
GeoGebra
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算柱 (兩位數)
兩組對邊相等和有直角的四邊形
球體建築師
判斷球體
錐體建築師
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angle0428
聖路易拱門
觀察軌跡求面積
sdjkgsdfagjklsanklgsa
圆锥曲线折纸操作题(教材案例)
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Tree Diagrams
Kite
Square
Volume
Constructions