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slide10
Author:
tao sun
GeoGebra
New Resources
撒针估算面积实验
常见四边形是否是双心四边形
双心四边形
直線的斜率:水平變化 & 鉛垂變化
第八周作业
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雙曲與漸近線
二次曲線的準線與焦點
畫等腰直角三角形
分数整体与部分为单位1的线段图示
正角、負角|Positive angles & Negative angles
Discover Topics
Sine
Equilateral Triangles
Diagrams
Statistical Characteristics
Geometry