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數學傳播39卷4期, 平面幾何公式思考
Author:
Yu-Tuan Lin
New Resources
畫出對稱圖形
画直线等分三角形的面积
GeoGebra笔记功能体验课件
找出對稱軸
兩位數除以一位數（二）
Discover Resources
固定三角形的條件−題4
Drawing quadrilaterals on the grid or the pinboard
Form 1(中一)
Circumcentre
游戏
Discover Topics
Right Triangles
Vectors 3D (Three-Dimensional)
Angles
Quadratic Equations
Square