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Ex5C#15
Author:
Big Lee
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
画直线等分三角形的面积
找出對稱軸
畫出對稱圖形
Discover Resources
彩虹三角
HKMO 2013 Question 3 Demonstration (Geometric Construction)
眼睛的毛病(近視及遠視)
homework
活工(三)Q1
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Parallelogram
Calculus
Random Experiments
Vectors 2D (Two-Dimensional)
Numbers