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GeoGebra
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GeoGebra
GeoGebra Classroom
GeoGebra
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Author:
林鳳美
GeoGebra
New Resources
盈利與虧蝕
撒针估算面积实验
折扣
常见四边形是否是双心四边形
平行線的判定
Discover Resources
Sangaku
Locus of a vertex of equilateral triangle
三角形內角和_2
基本作圖1
廣義三角:tan
Discover Topics
Straight Lines
Parabola
Percentages
Pythagoras or Pythagorean Theorem
Step Functions