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三角形
Author:
彭宇辰
Topic:
Triangles
GeoGebra
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算柱 (兩位數)
Earth with coastline
兩組對邊相等的四邊形
Nested spiral octagon
Claude 解幾何題
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trapezium
數學傳播39卷4期, 平面幾何公式思考
卡瓦列里原理
三圓外切
雙曲線2--焦點法
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Root
Sequences and Series
Trigonometry
Median Line
Combinatorics