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fchengang动画
Author:
符成岗
GeoGebra
New Resources
第八周作业2
平行線的判定
椭圆内切圆链
折扣
常见四边形是否是双心四边形
Discover Resources
周界4B (1)
同心多邊形
利用对称求线段和最值(移动端)的副本
六芒星
轉移矩陣 (馬可夫鏈)的副本
Discover Topics
Linear Programming or Linear Optimization
Numbers
Isosceles Triangles
Geometric Distribution
Line Segment