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2大長方形的周界
Author:
maths_p5
GeoGebra
New Resources
美國國旗 (Codex 版)
美國國旗 (Codex, 2026.10.06)
幾何作圖題：切三圓（題目）
算柱 (兩位數)
國旗 (Claude 版)
Discover Resources
Rectangle_02
縫衣針
平面族
密鋪
七巧板
Discover Topics
Random Variables
Combinatorics
Pythagoras or Pythagorean Theorem
Correlation
Statistical Characteristics