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祖暅原理（卡巴列斯）
Author:
赵林
Topic:
Geometry
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
異分母分數減法
四邉形 (四年級) 教師版
三位數除以一位數（一）
畫出對稱圖形
Discover Resources
內心與角平分線觀察
觀察圖中有哪些角會相等
Circle Rule
[S2] a revised version of Jane’s GeoGebra file (modified by the author)
三角函數由來= =
Discover Topics
Geometric Mean
Rectangle
Triangles
Sine
Power Functions