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手拉手模型
Author:
夜雨嘀嗒
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Nested spiral octagon
找出對稱軸
Earth with coastline
球體建築師
直角坐標平面上的旋轉變換
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PMC 2014-15 Q5
test
利用sequence指令在大圓上畫12個小圓
Copy of 固定周界的長方形的面積變化
旋轉圓
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Rotation
Cube
Incircle or Inscribed Circle
Angles
Plane Figures or Shapes