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兩圓外公切線
Author:
郭逸民
GeoGebra
New Resources
判斷球體
画直线等分三角形的面积
錐體建築師
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
Discover Resources
閱讀鐘面及數字鐘（時和分）
简谐振动函数图像的副本
除法Q2
拋物線(上下型)標準式
正N边形点列
Discover Topics
Piecewise Functions
Perimeter
Surface
Difference and Slope
Exponent