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拋物線的光線反射 獻給聰哥
Author:
宋政蒲
Topic:
Parabola
,
Reflection
GeoGebra
New Resources
畫出對稱圖形
兩位數加法
【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
三位數除以一位數（二）
Discover Resources
練習
ruler
黃金三角形
外心
躲掉1,-1,0的動態文字
Discover Topics
Integral Calculus
Histogram
Congruence
Similarity Transformation or Similarity
Cone