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 61
.913365 Doub. area, 86.31 - - 1.936041 Triangle aFA.aF,8.78 - - - 0.943495aA, 8.70 - - - 0.939519SmeFaA,45° - - 9.849485 Doub. Area, 54.01 -1.732499 85.67 51.75 117.1 121.7 3)308 86.31 40 54.01 12)320 516.54 Acres Roods Rods Area 25 — 3 - 12.32 25)827 56 SURVEYING. CASE VI. To SURVEY A FIELD FBOM… … J - Ch. L. FG. N. 70° W. 14.60 FA. N. 50 W. 16.20 FB. N. 30 W. 16.80 FC. N. 10 YV\ 21.20 FD. N. 7 E. 16.95 FE. N. 30 E. 8.50 To DRAW A PLOT OF THIS FIELD. Draw a meridian line to pass through the stationary angleas at F. From the point F, lay off the bearing and distanceto the several angles, and…
Surveying · Geometry · Trigonometry
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-59-35.webp)
