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直角梯形
Author:
Tse Sir
GeoGebra
New Resources
兩位數加法
三位數除以一位數（一）
直角坐標平面上的旋轉變換
錐體建築師
GeoGebra笔记功能体验课件
Discover Resources
柱體建築師
曲柄搖桿接雙搖桿
二次函數的圖形-平移版
三節棍問題
平行線法
Discover Topics
Special Points
Cuboid
Straight Lines
Difference and Slope
Equilateral Triangles