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四邊形ADFE的面積是多少？
Author:
hjyanghj
Topic:
Geometry
GeoGebra
New Resources
找出對稱軸
近似值：有效數字
畫出對稱圖形
兩組對邊相等的四邊形
三位數除以一位數（二）
Discover Resources
waaachen
三角形內心_不完美版
柯西不等式
數未學習社12/15
平行四邊形堆朵
Discover Topics
Conic Sections
Trigonometric Functions
Centroid or Barycenter
Quadratic Equations
Cuboid