更多vertices例句

1. At the vertices of a regular tetrahedron may be found such points.
2. The harmonic points are the vertices of the “harmonic triangle of the complete quadrangle.”
3. A four-side has six vertices, of which two and two are opposite, and three diagonals, which join opposite vertices.
4. If two pairs of adjacent vertices coincide, the hexagon becomes a quadrilateral, with tangents at two vertices.
5. Of a polar-triangle any two vertices are conjugate poles, any two sides conjugate lines.