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Author:
liqiang liu
,
Steve Phelps
GeoGebra
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四邊形的特性
兩組對邊相等的四邊形
兩位數除以一位數（二）
三位數除以一位數（二）
画直线等分三角形的面积
Discover Resources
托勒密定理推廣到直線
點的堆墮
拋物線2--焦點法
农大
翰林數學_1下_CH2-1_直角坐標平面的認識
Discover Topics
Linear Regression
Hypergeometric Distribution
Means
Sphere
Vectors 2D (Two-Dimensional)