Haswell, Charles Haynes, 1809- [from old catalog] · New York, Harper & brothers · leaf 276
Fig. 67. Fig. 68. Fig. 69. Fig. TO. … 1. The Tetrahedron, or Pyramid, Fig. 6T, which has four triangular faces. 2. The Hexahedron, or Cube, Fig. 61, which has six square faces. 3. The Octahedron, Fig. 68, which has eight triangular faces, 4. The Dodecahedron, Fig. 69, which has twelve pentagonal faces* 5. The Icosahedron, Fig. 70,…
Engineering · Mechanical engineering
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