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未命名
Author:
xuhao
GeoGebra
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画直线等分三角形的面积
拼砌四邊形
兩組對邊相等和有直角的四邊形
球体的体积推导(优化版)
異分母分數減法
Discover Resources
ie 4
纏繞SEQUENCE任意多邊版
圈圈移動
圓周的計算
二次函數a的意義
Discover Topics
Set Theory
Equilateral Triangles
Hypothesis Testing
Random Experiments
Rectangle