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trapezium
Author:
iedc
GeoGebra
New Resources
第八周作业
判斷球體
畫出對稱圖形
找出對稱軸
拼砌四邊形
Discover Resources
正四面體
彈幕
四角柱體(長方體)的截面
滑桿動畫示範-3(畢氏定理)
橢圓 推桿例題
Discover Topics
Natural Numbers
Median Value
Secant Line or Secant
Quadrilaterals
Volume