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蝴蝶定理（唐老师的课程）
Author:
龚洪萍
Topic:
Algebra
,
Geometry
GeoGebra
New Resources
画直线等分三角形的面积
拼砌四邊形
四邉形 (四年級) 教師版
柱體建築師
【案例】圆柱体内放置一个大球六个小球
Discover Resources
直角三角形直角三角形
Circle Rule
圓柱截面曲線
數學電腦繪圖與解題
动感数学
Discover Topics
Inequalities
Integers
Linear Programming or Linear Optimization
Vectors 3D (Three-Dimensional)
Limits