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最小周長
Author:
張庭瑞
GeoGebra
New Resources
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
球体的体积推导（优化版）
GeoGebra笔记功能体验课件
柱體建築師
Discover Resources
How to draw an ennegon with ruler and compasses?
正三角形
Light reflected in ellipse
兩圓位置關係及公切線
S6G6时间轴——历史上的名人
Discover Topics
Cuboid
Logic
Polygons
Mode
Probability