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圓心的軌跡方程式
Author:
李詠甯
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等的四邊形
找出對稱軸
第八周作业
兩位數除以一位數（一）
Discover Resources
正十二面體
正四面體空間中投影
maths1
Example 4
Copy of 正方體的反射對稱3
Discover Topics
Angles
Equations
Sine
Trapezoid
Quadrilaterals