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正角、負角|Positive angles & Negative angles
Author:
Ricky LI
,
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
画直线等分三角形的面积
錐體建築師
球体的体积推导（优化版）
GeoGebra笔记功能体验课件
【案例】圆柱体内放置一个大球六个小球
Discover Resources
斜線圖的畫法
分數與小數
繪製平行四邊形
密鋪5
三角函數圖解的副本
Discover Topics
Tangent Line or Tangent
Linear Functions
Circumcircle or Circumscribed Circle
Rotation
Congruence