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軌跡一︰移動點與一固定點保持固定距離(圓)
Author:
lamanleung
New Resources
错觉图形-平行线错觉
正二十面体框架
橢圓內的光線反射 獻給聰哥
Ebbinghaus illusion
未命名
Discover Resources
Sequence指令練習(逐一套疊三角形)
艾雪鑲嵌2
equations of circle 1
奇偶性的应用
旋轉長方形
Discover Topics
Planes
Plane Figures or Shapes
Normal Distribution
Symmetry
Tangent Line or Tangent
