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Author:
1041034 陳竑廷
GeoGebra
New Resources
近似值：有效數字
Earth with coastline
球體建築師
Nested spiral octagon
長方體平面投影 (Codex版)
Discover Resources
ghseh 二次函數上下y值差
五複合正6面體
硬幣繞多邊形面積
母子性質-1（動畫）
翰林數學_2下_CH3-4_三角形的外角大於任一內對角
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Percentages
Statistics
Circle
Binomial Distribution
Secant Line or Secant