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Angle of elevation and Angle of depression(仰角和俯角)
Author:
chisunch1
GeoGebra
New Resources
三位數除以一位數（一）
柱體建築師
球體建築師
兩組對邊相等的四邊形
拼砌四邊形
Discover Resources
軌跡,摺紙,滾動,實驗觀察,曲線
gjzbh 矩陣與遞迴關係：圓形圖
全等双子模型（等腰三角形）
二次函数的探究
以「時」和「分」報時 的複本
Discover Topics
Similarity Transformation or Similarity
Linear Functions
Dilation
Scalene Triangles
Fractal Geometry