six points circle

2 definitions found

six points circle - Collaborative International Dictionary of English v.0.48 :

  Six \Six\, a. [AS. six, seox, siex; akin to OFries. sex, D. zes,
     OS. & OHG. sehs, G. sechs, Icel., Sw., & Dan. sex, Goth.
     sa['i]hs, Lith. szeszi, Russ. sheste, Gael. & Ir. se, W.
     chwech, L. sex, Gr. ??, Per. shesh, Skr. shash. [root]304.
     Cf. Hexagon, Hexameter, Samite, Senary, Sextant,
     Sice.]
     One more than five; twice three; as, six yards.
     [1913 Webster]
  
     Six Nations (Ethnol.), a confederation of North American
        Indians formed by the union of the Tuscaroras and the Five
        Nations.
  
     Six points circle. (Geom.) See Nine points circle, under
        Nine.
        [1913 Webster]

  nine \nine\ (n[imac]n), a. [OE. nine, nihen, AS. nigon, nigan;
     akin to D. & LG. negen, OS. & OFries. nigun, OHG. niun, G.
     neun, Icel. n[imac]u, sw. nio, Dan. ni, Goth. niun, Ir. &
     Gael. naoi, W. naw, L. novem, Gr. 'enne`a, Skr. navan; of
     unknown origin. [root]307. Cf. Novembeer.]
     Eight and one more; one less than ten; as, nine miles.
     [1913 Webster]
  
     Nine men's morris. See Morris.
  
     Nine points circle (Geom.), a circle so related to any
        given triangle as to pass through the three points in
        which the perpendiculars from the angles of the triangle
        upon the opposite sides (or the sides produced) meet the
        sides. It also passes through the three middle points of
        the sides of the triangle and through the three middle
        points of those parts of the perpendiculars that are
        between their common point of meeting and the angles of
        the triangle. The circle is hence called the nine points  circle
         or six points circle.
        [1913 Webster]