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優良作品3(昀潔)
Author:
Ching-Hui Chou
GeoGebra
New Resources
三位數除以一位數（一）
拼砌四邊形
異分母分數減法
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
Discover Resources
trapezium
旋轉矩陣
曲線與投影
Relationship between Volume and Surface Area of a Sphere 球體的體積與表面面積的關係
变形的正方形
巧克力包裝盒的夾角(三角形柱)
Discover Topics
Functions
Differential Equation
Special Points
Congruence
Curve Sketching