Modern carpentry and joinery : being a compilation of the very best things and most modern and practical methods known in the arts of carpentry and joinery (1910)
Hodgson, Frederick Thomas, 1836- · Chicago : F. J. Drake & Co. · leaf 39
ay 2 / , D / b » a. ./ h c Fig. 17. projection, the problem is more difficult; as, however,the second case is not of much practical value, it willnot be considered. 36 MODERN CARPENTRY 3. STRAIGHT-SIDED SOLIDS. XIII. Given the horizontal projection of a regulartetrahedron, to find its vertical… … dJ) perpendicular to d C, and make C D equal to C B,C A, or A B; d D will be the height sought, which iscarried to the vertical projection from c to d. JoinA d and B d, and the vertical projection is complete.This problem might be solved in other ways. SOLID GEOMETRY 37 XIV. A point being given in…
Carpentry
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