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外心

Author:吳淑惠

Topic:Constructions

New Resources

球體建築師
三位數除以一位數（二）
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
小数的副本

Discover Resources

圓外一點到圓的距離
路徑四動畫
Logarithmic spiral
圓族
曲面指令练习（柱球转化）

Discover Topics

Right Triangles
Pyramid
Similar Triangles
Random Experiments
Complex Numbers

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