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光在角内反射
Author:
海平 文
Topic:
Reflection
GeoGebra
New Resources
折扣
双心四边形
常见四边形是否是双心四边形
异形操场
盈利與虧蝕
Discover Resources
angles sum of a triangle 3
equations of circle 1
粒子的拋物線軌跡
If指令的應用1-1
爱奇艺
Discover Topics
Terms
Circumcircle or Circumscribed Circle
Rotation
Volume
Arithmetic Operations