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倒數計時
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
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兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
四邊形的特性
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
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數字棋盤
對稱圖形
Angle at centre twice angle at circumference
兩位數除兩位數(例子一)
大黨小黨－政黨票的掙扎
Discover Topics
Similarity Transformation or Similarity
Interest Calculation
Circle
Statistical Characteristics
Vectors 2D (Two-Dimensional)