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面積與周界活動
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lkkbmaths teachers 檔案儲存用
GeoGebra
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sanjiaohanshu
四邉形 (四年級) 教師版
美國國旗 (Codex 版)
兩組對邊相等和有直角的四邊形
判斷球體
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模版
已知正三角形內部一點到三頂點距離求面積
Pyramid (Angle between Plane HBC and HCD)
數值滑桿_長方形1
螺旋正方形
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Ellipse
Linear Regression
Tangent Function
Boxplot
Arithmetic