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HKMO 2013 Question 3 Demonstration (Geometric Construction)
Author:
windwww
GeoGebra
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第八周作业
Nested spiral octagon
Fibonacci Clock
Earth with coastline
長方體平面投影 (Codex版)
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[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
ladder
幾何作圖 根號 螺線圖
congruent (AAA)
外心的位置
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Kite
Hyperbola
Translation
Optimization Problems
Sine