The naval architect's and shipbuilder's pocket-book of formulae, rules, and tables and marine engineer's and surveyor's handy book of reference (1884)
Mackrow, Clement · London, C. Lockwood and co. · leaf 19
Fig. 15. … 15. Another method. (Fig. 15.) Produce ab to any point d ; draw the lineT>d at any angle to the line ab ; bisect theline Dd in c, through whicli draw the line B&,,and make cb equal to BC; join AC and dbyand produce them till they meet at a : thenba will equal ba, the distance required.…
