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正n邊形與圓面積(2)
Author:
官長壽(longlife)
GeoGebra
New Resources
常见四边形是否是双心四边形
撒针估算面积实验
比較五件物件的重量
龙形曲线-分形龙
异形操场
Discover Resources
math test
距離和
圓與三角形
題二
包絡線
Discover Topics
Standard Deviation
Pyramid
Percentages
Similarity Transformation or Similarity
Tangent Line or Tangent