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拋物線
Author:
宋秉祐
GeoGebra
New Resources
撒针估算面积实验
常见四边形是否是双心四边形
中华人民共和国国旗
斐波那契螺旋弧线(表格法-可动态调节)
第八周作业3
Discover Resources
Apollonius Problem gergonne 4
三角形的外角和
数学教学新帮手
S3 Polynomials
三角形面積公式B2
Discover Topics
Angles
Centroid or Barycenter
Geometric Transformations
Addition
Right Triangles