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龜甲
Author:
呂麗珠
GeoGebra
New Resources
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
四邉形 (四年級) 教師版
畫出對稱圖形
第八周作业
Discover Resources
proof SAS
謝爾賓斯基三角形
ghseh 二次函數描點法頂點式-1
根據百分率找數量（二）: 例4的副本
任意正N边形在圆内滚动顶点的轨迹
Discover Topics
Area
Equilateral Triangles
Complex Numbers
Cosine
Geometry