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正十二面體內接正四面體或內接正六面體

Author:侯杰材

New Resources

  • 畫出對稱圖形
  • 找出對稱軸
  • 画直线等分三角形的面积
  • 兩組對邊相等和有直角的四邊形
  • 算柱 (兩位數)

Discover Resources

  • trigonometry
  • 切割正二十面體(直)
  • 密鋪4
  • 二元一次方程式及其解的意義
  • 固定周界的長方形的面積變化(周界是200厘米)

Discover Topics

  • Set Theory
  • Probability
  • Cone
  • Expected Value
  • Normal Distribution
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