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 54
e by two sides, withoutreference to the bearing of those sides. Such a compass would be par-ticularly useful in surveying land where there are mineral substanceswhich have an influence upon the compass needle, attracting it one wayor the other, and thus rendering it impossible to take a course by… … REMARKS. The sides of the several triangles into which the plot of afield is divided may be found by trigonometry ; and then thearea of each triangle may be calculated according to prob.IX. Rule 3. The sum of the areas of the several triangleswill be the area of the whole field. This method may…
Surveying · Geometry · Trigonometry
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