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一线三等角
Author:
叶明杰
GeoGebra
New Resources
三角函数 的副本
双心四边形
撒针估算面积实验
活动三：应用性质
科赫雪花
Discover Resources
弹簧
勝者即正義
khkhk
KS2 數學
劉虹圻ㄉ所有作品都在這喔~~~~
Discover Topics
Linear Functions
Calculus
Solids or 3D Shapes
Rotation
Geometry