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三心
Author:
林銓柔
GeoGebra
New Resources
拼砌四邊形
兩位數除以一位數（一）
兩組對邊相等的四邊形
画直线等分三角形的面积
四邊形的特性
Discover Resources
梯形
多边形外角和
分水問題
旋轉的概念
Rotation
Discover Topics
Geometric Distribution
Trigonometric Functions
Random Variables
Surface
Vectors 2D (Two-Dimensional)