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三角形重心軌跡(動點在三圓上)
Author:
趙緹
GeoGebra
New Resources
異分母分數減法
画直线等分三角形的面积
三位數除以一位數（一）
畫出對稱圖形
【案例】2018年全国1卷理科12题
Discover Resources
整數加減向量示意
畢氏定理動態證明(歐基里得，平形四邊形等面積，應用polyline)
夾擠單位圓的面積
三節棍
分数加法 Fraction Addition
Discover Topics
Hypergeometric Distribution
Perimeter
Statistical Characteristics
Parametric Curves
Similar Triangles