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同心圓+等分割線
Author:
許清惟
GeoGebra
New Resources
GeoGebra笔记功能体验课件
找出對稱軸
兩位數除以一位數（一）
算柱 (兩位數)
拼砌四邊形
Discover Resources
金剛合體！！
Angle of elevation and Angle of depression(仰角和俯角)
多普勒3D
正投影
圆与圆的位置关系
Discover Topics
Similar Triangles
Curve Sketching
Ratios
Polynomial Functions
Parabola