A system of geometry and trigonometry : with a treatise on surveying (1830)
Flint, Abel, 1765-1825, Gillet, George, Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Hartford : Cooke & Co. · leaf 79
In the triangle ABC, which contains 48 acres, it is requir-ed to cutoff 18 acres, by aline proceeding from C to the baseAB, which is 40 chains.As 48: 40: : 18: 15 Lay 15 chains on the base from B to D, and draw the lineCD. The triangle will then be divided as was proposed ;BCD containing 18 acres.… … Let ABCD, &c. be the plot of a field containing 11 acres,from which it is required to cut off 5 acres. Join two opposite corners of the field as D and G, with theline DG (which you may judge to be near the partition line)and find the area of the part DEFG, which, suppose, maywant 140 rods of…
Surveying · Geometry · Trigonometry
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