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利用尺規作圖找橢圓長短軸
Author:
mathguo
GeoGebra
New Resources
折扣
双心四边形
第八周作业
活动三：应用性质
斐波那契螺旋弧线（表格法-可动态调节）
Discover Resources
輪盤輪盤
Symmetric設計對稱圖案(一條對稱軸)斜1
圆的面积 - 排列组合法
Similar Triangles
三角形全等的理由 – 題3的副本
Discover Topics
Right Triangles
Complex Numbers
Tangent Function
Vectors 3D (Three-Dimensional)
Isosceles Triangles