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海龟爬行
Author:
赵林
GeoGebra
New Resources
畫出對稱圖形
拼砌四邊形
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
找出對稱軸
Discover Resources
垂直3
軌跡方程式-弦中點
三次函數
hello
勾股定理（几何原本）的副本
Discover Topics
Linear Programming or Linear Optimization
Fractal Geometry
Rectangle
Continuity
Polynomial Functions