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外心

Author:Bennie Liu

New Resources

  • 三位數除以一位數(二)
  • 兩組對邊相等和有直角的四邊形
  • 拼砌四邊形
  • 找出對稱軸
  • 四邉形 (四年級) 教師版

Discover Resources

  • 托勒密定理推廣到直線
  • congruent (AAA)
  • GGB5
  • 【折纸】A4纸折四面体
  • 科氏力 (Coriolis Force)

Discover Topics

  • Pyramid
  • Orthocenter
  • Random Experiments
  • Rational Numbers
  • Quadratic Equations
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