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商高定理之新月形
Author:
李春培
商高定理之新月形
GeoGebra
New Resources
錐體建築師
画直线等分三角形的面积
兩位數除以一位數（二）
畫出對稱圖形
四邉形 (四年級) 教師版
Discover Resources
glt-c02-09 五角柱旋轉
区域积分例子
正弦與餘弦函數
Add Constant in Junior statistic
乘法计时训练
Discover Topics
Trigonometric Functions
Line Segment
Equilateral Triangles
LCM and GCD
Rational Numbers