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正n邊形內接縮小正n邊形
Author:
許清惟
GeoGebra
New Resources
Nested spiral octagon
兩組對邊相等和有直角的四邊形
畫出對稱圖形
國旗 (作圖步驟直接餵給 Claude)
近似值：有效數字
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題 8
Transit of Venus - Pentagram
正三角形
等腰三角形外接圓上弦AB
Temp file
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Cone
Trigonometry
Tree Diagrams
Special Points
Step Functions