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優良作品1(孟倫)
Author:
Ching-Hui Chou
GeoGebra
New Resources
兩組對邊相等的四邊形
第八周作业
近似值：有效數字
直角坐標平面上的旋轉變換
四邊形的特性
Discover Resources
軌跡二︰移動點與兩固定點保持相等距離(垂直平分線)
平面和正方體截痕
因式分解二次方程
Net of cone
cos, sin 與單位圓
Discover Topics
Histogram
Curve Sketching
Mathematics
Geometry
Interest Calculation