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橢圓2--四圓心近似法
Author:
33陳郁婷
GeoGebra
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兩組對邊相等的四邊形
直角坐標平面上的旋轉變換
四邊形的特性
柱體建築師
判斷球體
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機率統計
相同圖形的拼砌（三角形）
疊代
等高
S3 Ex4.3 Q03(3D圖)
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Incircle or Inscribed Circle
Cuboid
Complex Numbers
Translation
Median Line