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Drag the red dots, see the area ratio of EHFG to ABCD
Author:
johnmayhk
GeoGebra
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GeoGebra笔记功能体验课件
【案例】2018年全国1卷理科12题
錐體建築師
兩位數除以一位數（一）
球体的体积推导（优化版）
Discover Resources
內切圓半徑證明
Quadratic Function Calculator 二次函數計算器
優良作品1(沛綺)
规律点问题的动态演示
面積比化為向量比
Discover Topics
Multiplication
Percentages
Parabola
Frequency Distribution
Natural Numbers