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 115
ngth of a a degree willbe 34f miles.—Ed. * This and the following problems are not contained in previous edi-tions.—Ed. K2 110 APPENDIX. the point E may be taken in one side or angle. And gene-rally, it may be observed, that the nearer the point E is ta-ken to one side of the map, the less will the… … In many cases it is convenient to be able to make an esti-mate of the quantity of land in a field, with tolerable accuracy,but without the trouble of a tedious computation. In suchinstances, the plot may often be reduced, with advantage, to atriangle. Let ABCDEF be the field. I observe a…
Surveying · Geometry · Trigonometry
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