Beman, Wooster Woodruff, 1850-1922, Smith, David Eugene, 1860-1944 · Boston, Ginn & company · leaf 304
Octahedron. … Dodecahedron. Icosahedron. 288 SOLID GEOMETRY. [Bk. VII. 2. PARALLELEPIPEDS. 386. Definitions. A Parallelepiped is a solid bounded by-three pairs of parallel planes. The four lines through a parallelepiped, joining the oppo-site vertices, are called its diagonals. Proposition III. 387. Theorem. The…
Geometry
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