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trigo ratios np2c
Author:
np2cmath
GeoGebra
New Resources
球体的体积推导（优化版）
GeoGebra笔记功能体验课件
判斷球體
四邉形 (四年級) 教師版
畫出對稱圖形
Discover Resources
Line Perpendicular to Plane 垂直於平面的直線
滑桿動畫2-4:畢氏定理
图形动画3
竞猜游戏：说出图中角的大小
活工(一)Q4
Discover Topics
Tangent Function
Subtraction
Diagrams
Unit Circle
Secant Line or Secant