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p11-11
Author:
johnmayhk
GeoGebra
New Resources
異分母分數減法
兩位數除以一位數（一）
GeoGebra笔记功能体验课件
球體建築師
找出對稱軸
Discover Resources
Pappus古定理證明
定周长的正多边形面积变化规律
sequence-circle
圖形的周界
斜率乘积为定值（椭圆、双曲线）
Discover Topics
Parallelogram
Square
Piecewise Functions
Triangles
Conic Sections