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密鋪5
Author:
chen mingchuan
GeoGebra
New Resources
直角坐標平面上的旋轉變換
拼砌四邊形
兩組對邊相等和有直角的四邊形
近似值：有效數字
異分母分數減法
Discover Resources
二元一次不等式-約東條件下的極大值極小值
对数函数（表格文本效果）的副本
基础知识
将三角形面积一分为二
河內塔 3D (Tower of Hanoi 3D)
Discover Topics
Statistics
Fractal Geometry
Interest Calculation
Parametric Curves
Equilateral Triangles