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S4E13镜面的方圆错觉
Author:
杨秀芬
GeoGebra
New Resources
兩組對邊相等的四邊形
畫出對稱圖形
找出對稱軸
第八周作业
拼砌四邊形
Discover Resources
任務3
平面
二次函数图象与a,m,k关系的副本
周界-平移法(練習三)
動態軌跡與動態色彩
Discover Topics
Subtraction
Straight Lines
Symmetry
Cuboid
Histogram