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Angle of elevation and Angle of depression(仰角和俯角)
Author:
chisunch1
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
直角坐標平面上的旋轉變換
找出對稱軸
三位數除以一位數（一）
Discover Resources
rectangle construction
立體圓錐與斜切面關係
Copy of Quadratic Graph - QESOSASS
Copy of 方格紙上畫四邊形
滑桿動畫(起始檔案)
Discover Topics
Quadratic Functions
Plane Figures or Shapes
Line Segment
Frequency Distribution
Angles