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第12届美国中学生数学邀请赛题
Author:
王俊辉
GeoGebra
New Resources
幾何作圖題：切三圓（題目）
sanjiaohanshu
美國國旗 (Codex, 2026.10.06)
找出對稱軸
近似值：有效數字
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弗雷澤螺旋幻覺圖(難度99%)
圓內接四邊形對角
Angles in a Circle:Property 3
一次函数的副本
兩位數乘三位數直式
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Dilation
Line Segment
Parametric Curves
Tree Diagrams
Statistical Characteristics