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PMC 2014-15 Q3
Author:
Arthur Lee
圖中圓形的數目隨n的大小而改變。當n＝6，圖中應該有多小個圓？
GeoGebra
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算柱 (兩位數)
Nested spiral octagon
四邊形的特性
美國國旗 (Codex, 2026.10.06)
幾何作圖題：切三圓（題目）
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九點圓 (9-Point Circle)
眼球定理
滑桿動畫2-4:畢氏定理
Angles in a Circle:Property 1
數值滑桿_長方形2
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Right Triangles
Equilateral Triangles
Symmetry
Similarity Transformation or Similarity
Linear Programming or Linear Optimization