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改变单位圆 (3 May 2018)
Author:
lzp80
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
判斷球體
兩位數除以一位數（一）
Discover Resources
rainbow
例題6
簡單拋物線
Parallelogram
旋轉對稱 Rotational symmetry
Discover Topics
Arithmetic
Subtraction
Constructions
Area
Perimeter