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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
漂亮的摇摆曲线
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數（二）
多邊形的面積
兩位數除以一位數（一）
Discover Resources
七巧板揖人
More about graph: Domain and Range
圖解畢氏定理
硬幣繞多邊形面積分解圖
滚动的石头
Discover Topics
Addition
Step Functions
Constructions
Perimeter
Solids or 3D Shapes