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Introduce tangent ratio
Author:
VCChung
GeoGebra
New Resources
畫出對稱圖形
画直线等分三角形的面积
判斷球體
找出對稱軸
四邉形 (四年級) 教師版
Discover Resources
双曲线的参数方程
證明
對稱成分(零序.正序.負序)
拼出三角形的副本
光圈与正多边形外角和
Discover Topics
Sine
Angles
Straight Lines
Kite
Integral Calculus