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螢橋國中
GeoGebra
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兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
四邊形的特性
兩組對邊相等和有直角的四邊形
近似值：有效數字
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對數的遞增或遞減(底數大於1)
餘弦定理的圖形證明2
疊代
展開圖
勾股定理（几何原本）的副本
Discover Topics
Vectors 2D (Two-Dimensional)
Ellipse
Differential Calculus
Straight Lines
Incircle or Inscribed Circle