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圓內的光反射
Author:
王政凱
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
兩位數加法
Discover Resources
挑战中考压轴题
線對稱圖形練習2
題 9
給錐體一個名字 4
中學(高中)
Discover Topics
Integral Calculus
Geometric Distribution
Complex Numbers
Similarity Transformation or Similarity
Straight Lines