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三角形的外角和

Author:Gideon Huang

New Resources

  • 直角坐標平面上的旋轉變換
  • 小数 的副本
  • Fibonacci Clock
  • 兩組對邊相等的四邊形
  • 四邊形的特性

Discover Resources

  • 方格紙上畫長方形3
  • 阿波羅尼奧斯圓
  • 盾牌
  • GGB報告
  • 圆周长演示

Discover Topics

  • Subtraction
  • Fractal Geometry
  • Pythagoras or Pythagorean Theorem
  • Arithmetic Operations
  • Incircle or Inscribed Circle
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