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数矩形个数
Author:
dhc987
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
球體建築師
異分母分數減法
錐體建築師
畫出對稱圖形
Discover Resources
四心的變化II
三角形重心軌跡(動點在三圓上)
直角坐標變換：測驗(ALEX CHIK)
mathmedia_40204
圓上的角任務(二): 提示卡
Discover Topics
Arithmetic
Means
Geometric Mean
Symmetry
Frequency Distribution