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焦点弦2
Author:
liu
GeoGebra
New Resources
龙形曲线-分形龙2
盈利與虧蝕
折扣
异形操场
正方形雪花图案
Discover Resources
標準差：測驗
Angle between line & plane
圓錐截痕模型
六年級 圓周
圓內冪性質
Discover Topics
Cone
Multiplication
Square
Tangent Function
Vectors 2D (Two-Dimensional)