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Area of a Trapezoid by Similarity

作者:John Golden
主题:面积, 梯形
Inspired by Ed Southall's trapezoid musings. http://solvemymaths.com/2015/03/07/proof-area-of-a-trapezium-trapezoid-us/ In the sketch, it is set up so BC<=AD. Is that an okay assumption to make?

新资源

  • Damped Trochoidal Curve
  • Slope Between 2 Points (Phase 2)
  • רישום חופשי
  • apec
  • Building Parallelograms with Set Areas

发现资源

  • Pythagoras
  • IndraNet
  • Question 4: Non-collinear Points
  • Nova Combining Transformations
  • Incircle of a Triangle
  • Стереометрия. Плоскость ABC - матрицы
  • Fraction Addition

发现主题

  • 等边三角形
  • 几何分布
  • 相似三角形
  • 参数曲线
  • 算术
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