A treatise on surveying, comprising the theory and the practice ; (1887)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, 1840- [from old catalog] ed · New York, D. Appleton and company · leaf 286
trial-line, two sides of the field, and the required line, and con-taining the difference between the required content and that partedoff by the trial-line. PARTING OFF LAND. 271 0. By a Line running in any Given Direction. 413. To part off a Triangle. By construction, on the groundor the plat,… … 414. If the field be given by bearings, find from them the angles 2X B F G sin. (B + F)\ sin. B . sin. F / Example. Let B A bear S. 30° E. ; B C,N. 80° E. ; and a fence be required to run fromsome point in B A, a due north course, and topart off one acre. Required the distance fromB to the point F,…
Surveying
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