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peacock3
Author:
李春培
peacock3
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數加法
第八周作业
球体的体积推导(优化版)
三位數除以一位數(二)
Discover Resources
task2
scalar multiplication
Exterior Angle Cyclic Quadrilateral
任意三角形兩不等圓
我的第一个绘本
Discover Topics
Equilateral Triangles
Median Line
Arithmetic
Polygons
Real Numbers