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光折射
Author:
kevin20020905
GeoGebra
New Resources
【案例】2013年安徽高考15题
異分母分數減法
找出對稱軸
錐體建築師
兩組對邊相等和有直角的四邊形
Discover Resources
四邊形柱體表面積展開圖
分點公式：P = (?)A + (?)B + (?)C
工具：PlaneString
Pyramid with square base (angle between planes)
桃子Peach
Discover Topics
Median Line
Standard Deviation
Rotation
Similar Triangles
Diagrams