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Author:
hou yi ting
孢落限
GeoGebra
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New Resources
異分母分數減法
找出對稱軸
畫出對稱圖形
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
Discover Resources
電子幾何條
Spherical Spiral
菱形的特性
P.1 加法結合性質（新課程）
拼砌四邊形
Discover Topics
Continuity
Frequency Distribution
Derivative
Quadratic Equations
Boxplot