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three
Author:
Jia-ming Shiu
three
GeoGebra
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双心四边形
圓的基本性質
垂直線的斜率
龙形曲线-分形龙2
正方形雪花图案
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圓周角
quadrilaterals 3
優良作品4
Question 4
勾股定理:射影无字证明
Discover Topics
Trapezium
Quadratic Equations
Differential Calculus
Linear Functions
Orthocenter