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Tangent to circle
Author:
johnmayhk
GeoGebra
New Resources
圓周公式的應用
三位數除以一位數（一）
第八周作业
画直线等分三角形的面积
探究三角形的全等條件
Discover Resources
集合運算
園內接三角形
面積題 E
橢圓1--同心圓法
数线段
Discover Topics
Geometric Mean
Plane Figures or Shapes
Volume
Straight Lines
Optimization Problems