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错觉图形-外凸的四边形
Author:
马宁
GeoGebra
New Resources
折扣
第八周作业3
常见四边形是否是双心四边形
斐波那契螺旋弧线(表格法-可动态调节)
撒针估算面积实验
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三角形外心
二次函數的觀察
奈格爾點與葛爾崗點互為等距共軛點
畫三角形 題1a 的複本
A的影响
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Cosine
Orthocenter
Trigonometry
Sequences and Series
Equilateral Triangles