Add new comment


In fact Holmes, the circle with the chord S and tangent to line V has its center equidistant from the endpoints of the segment and from the line. Thus the center is on the locus of points equidistant from the line V and one of the endpoints of S (either will do), that is, on the parabola with focus the endpoint and directrix V.

Filtered HTML

  • Web page addresses and email addresses turn into links automatically.
  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd>
  • Lines and paragraphs break automatically.