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Ex5C#11
Author:
Big Lee
GeoGebra
New Resources
異分母分數減法
兩組對邊相等的四邊形
兩位數除以一位數（二）
拼砌四邊形
畫出對稱圖形
Discover Resources
緯度、日照、影長
柱體的總表面面積
slopefield_rational function
跳動的愛心－平面
Inclination and Gradient(傾角和斜率)
Discover Topics
Arithmetic
Rhombus
Logic
Fractal Geometry
Upper and Lower Sum or Riemann Sum