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旋轉4
Author:
Grace
GeoGebra
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兩組對邊相等和有直角的四邊形
判斷球體
拼砌四邊形
兩位數除以一位數（二）
錐體建築師
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思考題
製作及設計繡曲線
Opening Box
面積的認識4
B6 二次函數
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Right Triangles
Kite
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Plane Figures or Shapes