But the circle embraces them altogether as the geometrical locus263 of the vertices of triangles satisfying the given conditions.
At the vertices of a regular tetrahedron may be found such points.
Polyhedra like the pyramid in 17 are represented by the projections of their edges and vertices.
Similarly the elevation of the other sides and vertices are found.
The ends of these diameters are the vertices of the required square.
Mechanical means of describing hyperbolas, their foci and vertices being given.
FHH′F′; and the relation of the principal points to the vertices is also the same as in the mensicus.
The practical problem may be given of locating the vertices of the triangle and of finding the length of each stay.
The harmonic points are the vertices of the “harmonic triangle of the complete quadrangle.”
A cube may be inscribed in an octahedron, its vertices being at the centers of the faces of the octahedron.
1560s, "the point opposite the base in geometry," from Latin vertex "highest point," literally "the turning point," originally "whirling column, whirlpool," from vertere "to turn" (see versus). Meaning "highest point of anything" is first attested 1641.
vertex ver·tex (vûr'těks')
n. pl. ver·tex·es or ver·ti·ces (-tĭ-sēz')
The highest point; the apex.
The topmost point of the vault of the skull; the crown of the head.
The portion of the fetal head bounded by the planes of the trachelobregmatic and biparietal diameters, with the posterior fontanel at the apex.