In geometry, the nine-point circle is a circle that can be constructed for any given triangle . It is so named because it passes through nine significant points, six lying on the triangle itself .... , a circle that can be constructed for any given triangle
Euler diagrams or Euler circles are a diagrammatic means of representing Set and their relationships. They are the modern incarnation of Euler circles, which were invented by Leonhard Euler in the 18th century.... , a diagrammatic means of representing sets and their relationships
