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扇形面積
Author:
李春培
扇形面積
GeoGebra
New Resources
錐體建築師
兩組對邊相等的四邊形
異分母分數減法
判斷球體
兩位數除以一位數（一）
Discover Resources
線性規劃
優良作品4(楚耘)
數據分析2
旋轉方塊
堆四顆球
Discover Topics
Solids or 3D Shapes
Prism
Linear Functions
LCM and GCD
Geometric Distribution