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正n邊形內接縮小正n邊形
Author:
許清惟
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
sanjiaohanshu
畫出對稱圖形
四邉形 (四年級) 教師版
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Time
利用Locus指令將封閉區域塗色
禪繞畫
圆-视觉差
平面直角坐标系的构成
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Mode
Quadratic Functions
Plane Figures or Shapes
Polygons
Numbers