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翰林數學_2下_CH4-1_平行線的特性與定義

Author:翰林數學

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拼砌四邊形
美國國旗 (Codex 版)
兩組對邊相等的四邊形
四邊形的特性
Fibonacci Clock

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[問題] G1, G2, G3 為△ACG, △ABG, △BCG 的重心
Angle between Line and Plane
眼睛的毛病(近視及遠視)
扇形弧長公式1
固定周界的長方形的面積變化（周界是200厘米）

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Functions
Plane Figures or Shapes
Upper and Lower Sum or Riemann Sum
Vectors 3D (Three-Dimensional)
Statistics

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