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橢圓2--四圓心近似法
Author:
33陳郁婷
GeoGebra
New Resources
柱體建築師
第八周作业
找出對稱軸
畫出對稱圖形
兩位數除以一位數（二）
Discover Resources
圓面積計算
happy new year
三角形重心軌跡(動點在三圓上)
Locus: Fixed Distance From Straight Line
Closure shape
Discover Topics
Complex Numbers
Cube
Triangles
Solids or 3D Shapes
Geometry