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waaachen
Author:
陳兪宏
waaachen
GeoGebra
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兩組對邊相等和有直角的四邊形
小数 的副本
Nested spiral octagon
找出對稱軸
球體建築師
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測試
謝爾賓斯基三角形(Sierpinsky)
三角形面積公式A
方程式(?)
Copy of 圖一
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Coordinates
Percentages
Polygons
Triangles
Optimization Problems