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Pocket-book of mechanics and engineering (1864)
Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 104
85. Tetrahedron, r = 0*20413 s.R = 0-60725 s.a = 1-73205 s3.c = 0-11785 S3. 86. Hexahedron, r = 0-50000 g.i? = 0-86602 s.a = 6-00000 s».c = 1-00000 S.Mechanical engineering · Engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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