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梯形面積(求上底)
Author:
lkkbmaths teachers 檔案儲存用
GeoGebra
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找出對稱軸
判斷球體
錐體建築師
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
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四邊形
ex 8
多項式函數圖形
資料統計
高长乐
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Pie Chart or Circle Chart
Means
Definite Integral
Cylinder
Centroid or Barycenter