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Apollonius Problem gergonne 3
Author:
tkyggb
GeoGebra
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多邊形的面積
平行線的斜率
球体的体积推导（优化版）
漂亮的摇摆曲线
【案例】2018年全国1卷理科12题
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數學作圖
拼砌多邊形
ladder
圓內接四邊形任務二
拋物線5--包絡線法
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Secant Line or Secant
Hyperbola
Dilation
Addition
Percentages