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三角形的高與面積
Author:
+x sir
GeoGebra
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画直线等分三角形的面积
錐體建築師
柱體建築師
拼砌四邊形
【案例】2013年安徽高考15题
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繪製平行四邊形
Two lines
眼睛的毛病(近視及遠視)
正立方體->菱形十二面體(滑桿動畫)
拋物線2-焦點法
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Functions
Cone
Geometric Distribution
Inequalities
Terms