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任務2的副本
Author:
童话
,
gklwong
三角形
GeoGebra
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拼砌四邊形
画直线等分三角形的面积
找出對稱軸
兩組對邊相等和有直角的四邊形
畫出對稱圖形
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畢氏定理動態證明(劉徽)
塗鴉
塗色練習
假的龍珠
Quiz on Addition and Subtraction of Directed Numbers (2)
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Right Triangles
Rotation
Confidence Interval
Distributions
Upper and Lower Sum or Riemann Sum