| Perpendicular bisectors of two pieces of its medians form a hexagon with opposite sides parallel. |
| These polygons are made by drawing lines between gauges, then making perpendicular bisectors of those lines form the polygons. |
| The common perpendicular bisectors of parallel sides bisect the angles of the triangle formed by the extensions of the three equal diagonals. |
| Perpendicular bisectors of these two lines were drawn and the intersection point was the centre of the femoral head. |
| It then follows from the Menelaus theorem, that every three such points are collinear provided all or two of the bisectors are external. |
| Indeed, let L P, L Q and L R be the points of intersection of bisectors of angles CPB, AQC, and BRA with sides CB, AC and BA, respectively. |
