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平行四边形面积演示
Parallelogram: Area
平行四边形面积演示
Author:
颖杰 范
Parallelogram: Area
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Parallelogram: Area
New Resources
四邊形的特性
找出對稱軸
Fibonacci Clock
近似值：有效數字
畫出對稱圖形
Discover Resources
數學題目參考圖形
YIPPUIMEIgeogebra
Orthographic views example
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
P5三角形的面積
Discover Topics
Incircle or Inscribed Circle
Mode
Geometry
Trigonometric Functions
Translation
