Godfrey, C. (Charles), 1873-1924, Siddons, A. W. (Arthur Warry) joint author · Cambridge, University Press · leaf 157
fig. 83. fig. 82. The four lines AB, BC, CD,DA are called sides. The meet of any two sidesis called a vertex; the verticesare the six points A, B, C, D,E, F. Opposite vertices are ver-tices that do not lie on thesame side (A, C; B, D; E, F). The join of two oppositevertices is called a…
Geometry, Modern
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