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光学在抛物线内的反射

Author:雷风恒

New Resources

  • 判斷球體
  • 算柱 (兩位數)
  • 兩組對邊相等和有直角的四邊形
  • 三位數除以一位數(一)
  • 画直线等分三角形的面积

Discover Resources

  • 一个圆的若干竞赛异型题
  • 百分數(小學):折扣 / 賺賠(HTML5 版)
  • gslsb 正方形數列
  • Hamid Naderi Yeganeh Ellipse1
  • 一个函数的零点个数.许兴华数学

Discover Topics

  • Geometric Distribution
  • Centroid or Barycenter
  • Circumcircle or Circumscribed Circle
  • Polygons
  • Area
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